 Hi everyone, it's MJ the fellow actuary and I thought let's make a fun video and do an online Actuarial quiz. So let's quickly go through the rules. I think the first one goes without saying no googling We want to test your own ability and not how quickly you can use a search engine Too you are allowed to pause the video at any time. There's no time limit So if you do think I'm going too quickly after I've read the question You're able to pause it and think as much as you need to However, they're not going to be mathematical questions instead They're gonna be 50% about the history or general knowledge of actuarial science and then 50% are just gonna be general knowledge About everything else in the world now you can also do this as a group activity. So you use software like zoom House party what Google's got hangouts So you can do this as a group activity and I think it could be quite a fun thing Or you could go solo and and try your best of luck and then send it to a friend and say hey Let's see what score you got over here. I Am gonna be going through first all the questions So I want you to maybe write them down on a piece of paper And then we're gonna go through all the answers when you can then tally and see how well you did Now what I want you to do is if possible Comment with the score you got and this is not to see how badly you did I am suspecting that I made this thing too difficult So I want to see if anybody got more than 10 out of 20 I think that would be very very good But this is also just an indication to see if I made this one too easy or too hard And then if you enjoyed it hit the like button because I think if we get 50 likes I will do round 2 so we'll make another quiz So you are able to vote if you liked this type of video So hit the like button and I'll make another one And then what we're also gonna be doing is just so that we're playing for something is I'm gonna be picking one of the subscribers in the comment section And you're gonna be a lucky winner and I'm gonna give you a free course on you to me that I've created I've got like a dozen of these things you can choose which one you want and I'll give it to you for free So with that said and done, let's jump straight into the first question And of course you can see by the picture it is gonna be virus related So let's start off with a question. This one may be a little bit easy But which pandemic caused actuarial science like if it wasn't for this pandemic Actuarial science might not actually have been developed. Was it a COVID-19? Was it to the black plague? Was it three the Spanish flu or was it D? Pandemic didn't cause the greatest profession on earth and of course I know there's other names like coronavirus and bubonic plague and all those other things and ones of virus ones of disease But I hope you guys get what what I'm communicating here So let me know we'll write it down a piece of paper what you think the answer is But let's move on to question two pause if you need more time to think Okay So question two is gonna be quite well a lot more generic it's gonna be about America and the question is who was the second president of the United States of America Was it Thomas Jefferson? Was it John Adams? Was it James Madison? Or was it Benjamin Franklin? Question three. Oh, there's like a big nuclear bomb This is actually the actuarial question because it says who derived the exact Distribution of the ratio of the mean square of successive differences to the sample variants were independent and identically normally distributed variables as well as advised America on where to drop the nuclear bomb Was it James Durbin? Jeffrey Watson, Yonfa Newman or Alloc Bargava, I'm actually terrible with pronouncing names. I'm actually really surprised. I got the first three, right? But that guy at the end therefore number D. Okay, let's go into question four Question four coming back to general knowledge What river separates King Shasa and Brazzaville? Is it the Zambezi River? Is it the Congo River? Is it the Nile River or is it the Kangara River? So a little question about Africa over here Like I said, you can pause the video to think it through but no googling is allowed Okay, question number five jumping back into actuarial science Which distribute which distribution always has an undefined mean? Okay, and there's the clue is I'm giving the picture over there So if you can see the picture that's a little bit of a clue It's not the normal distribution that that's not the normal distribution The tails are too fat for it to be the normal but anyway coming to the answers Is it the levy distribution? Is it the kautchie distribution? Is it the inverse gamma distribution or is it the Pareto? Distribution pause think it through otherwise. I'll see you guys at the next question So question number six this one's a little bit random But a hundred years ago there was a train that was powered by fish Okay, is this true is this false or is this just a really stupid question? Okay question number seven What is the crude death rate of the world and I'm using the CIA's statistic based on 2020 is it nine point four per thousand is it seven point seven per thousand eight point three per thousand or 8.4 per thousand it's a good question. You guys should know this Okay, coming back to general knowledge in what year did Wonder Woman first appear in the comics? Was it 1938? 1939 1941 or 1959 let me know or you DC fans out there Okay, question nine If you know who the person is in the picture, then you're also gonna get the answer But the question is who discovered the Bernoulli distribution was a Jacob Bernoulli Johan Bernoulli Nicholas Bernoulli or Daniel Bernoulli because that's the thing about the Bernoulli's there was a lot of them Like they were quite a power family when it came to mathematics But which one discovered the Bernoulli distribution that we all know and love I think they also discovered binomial distribution, but they couldn't like call that the Bernoulli distribution as well But yeah, let me know what you think the answer is Okay, question number 10. This is one of my favorite paintings So this is back to just general knowledge and we want to know who painted this beautiful picture known as wandering in the sea of Fog was it Casper David Friedrich? Was it coral Friedrich Gauss? Was it Friedrich Nietzsche or was it Friedrich Bezel? Let me know and Yeah, let's go to question 11 Like I said, you can pause it if you need to think think it through but let's go to question 11 So question 11 coming to a natural question And this is who corrected the sample variance formula so that it was no longer biased So basically who added in the n-1 or replace 1 divided by n by n-1 Was it Casper David Friedrich? Was it Carl Friedrich Gauss? Was it Friedrich Nietzsche and was or was it Friedrich Bezel? I'll give you a clue They had Friedrich in their name and yes, this is I thought I'd use the same Possibilities as the previous question, but the answer is in there. So try think it through and you will you'll do quite well Okay question 12 coming back to just general knowledge a Gosh like I say my pronunciation is horrible, it's horrendous. What is that a playing? On a lot just a playing on a lot of just is someone who collects cigarette cards egg cups email stamps or dolls again another random question Okay. Oh, sorry, like I said pause if you need to think it through otherwise this continue to another actual real question So the English life tables 15 or the ELT 15 mortality tables are based on what year? Now, I don't know if the Society of Actress in America use the same life tables as us or the people who use the Institute and faculty Because if you don't then you guys aren't gonna get this, but I think the rest of the actual students This should be an easy one was it 1981 82 83 73 74 75 90 91 92 2002 2003 2004 Cool pause think about it. Otherwise, let's move on to question 14 Cool So what is post Malone's first real name? Is it Austin? Is it Richard? Is it Louis or is it Carl? Like I said pause or let's continue Okay question 15 you can see we're going back to the actuarial sign side and Who else contributed to the black skulls formula and the formulas given over there was it Robert Yaro Was it Robert Z. Merton? Was it Robert K. Merton? Or was it Robert J. Shiller again another little hint Their first name was Robert. Okay, their first name was Robert, but who was it? So, let me know it will write down your answer. Let's go up to question question 16 so question 16 general knowledge, let's go into a little bit of sport and Which country won the World Cup in? 1986 was it Argentina was it Brazil was it West Germany because they were at West Germany back then or was it Mexico Okay, like I say pause think it through otherwise We're gonna be moving on to question 17 and that is who introduced the weak semi strong form in the efficient market Hypothesis and this one's a little bit difficult because I think everybody here worked on the efficient market So I want to know who introduced the weak semi strong ideas Was it Louis like I can't pronounce names butch Bachelier. I think that Bachelier Louis Bachelier But no Mandelbrot. I hope I'm saying his first name correct Paul Samuelson. I can say that name or Eugene Famer. So let me know who you think Introduced weak semi strong form in the efficient market hypothesis Okay question 18 General knowledge on what date is Emperor Nero's birthday? Is it 15th of December 37 AD 8th of March 32 BC 5th of September 55 AD 24th of September for BC Question 19 this one if you're an actuarial student and you get this one wrong. I'm gonna be upset I'm gonna be upset. I'm joking this. It's a difficult question. It's a difficult question We all love Markov thinking he's played all of ours in the core technical subjects But I want to ask what is his first name? So what is the first name of the Markov the Russian mathematician behind all the stochastic processes? So the Markov principle the Markov jump the Markov chain I mean he's done a lot. So let's see if anybody actually knows what his first name is Was it Vladimir? Was it Andre? Was it Nikolai or was it Anton? Then coming to the final question, which I don't know why I put this one in because I struggle to pronounce names but question 20 is Who measured the circumference of the earth during the Hellenic age and the trick here Is that everyone kind of knew that the world was round? It's it's it's only it's only the crazy millennials today if you think the world is flat I think we've always kind of thought that the world was round But so who I want to know measured the circumference of the earth Was it Aristotle? Was it Aristothecines I think I did quite well pronouncing that was it Pythagoras or was it Solicius of Solicia. That's quite a cool name. Solicius of Solicia So like I said think it through But basically that kind of ends the quiz So if you want to go back to any of the questions now's the time to do make sure you've written The numbers and the letters of what you think because we're gonna quickly talk about Udemy and then we're gonna look at the answers So very quickly. I just wanted to have a little shout out to my Udemy thing I've just hit 5,000 students on Udemy, which is very very cool I've got over a dozen courses on actuarial science. I've got a really big one on statistics so I recommend you guys go check it out and What I've also done is during lockdown I was cleaning up stuff I found an old hard drive and this old hard drive Basically taken most of the stuff and I've created a new course on Udemy called the actuarial collection And it's it's over 10 hours and it's got a whole bunch of my old study notes So I don't if you guys were following me really early on in in the channel back in 2013 I was making all those CA1 videos. I only found half of them. Well, I found the other half So I found video 25 to from chapter 25 to chapter 48 So it is a lot of content and I don't want to spam my YouTube channel with like just dumping a lot of CA1 videos So it will be on this actual collection as well as a whole bunch of PDFs and other mind maps that I've made So I really recommend that you guys go and check that out. So yeah, Udemy You can see I've got some courses on that various prices Udemy does have some flash sales, but check the description of this video or in the comment section I might put Some coupon codes so that my my YouTube subscribers can get the courses at a more reasonable rate Otherwise, it's a great way to support the channel and yeah It's I'll enjoy it if you guys bought a few courses. But anyway, let's go back to the answers of the quiz Okay, so answer time. So question one Which pandemic caused actuarial science? Wasn't COVID-19 it was the black plague So kind of what was happening is I mean the black plague starts when around the 14th century And it ravages the earth for like a good 300 years. Well, actually, I mean there was even the bubonic plague was even breaking out in Madagascar Recently so these plagues still continue for a long time But what was happening in London if so many people were dying that they got these people called Searches of the dead and they would go out and they would count bodies In the city and like they would start counting these bodies they would also ask the church to start counting the funerals and from all this data they put it in tables called bills of mortality and then Some clever people so looking at the bills of mortality and they created life tables They saw that there were patterns then people started creating funds around it and premiums and could use it to help orphans and widows and actuarial science actually formed From the data that was collected from the black plague so cool little trivial fact and that's what maybe I don't know maybe something else is gonna start from COVID-19 like maybe we could start seeing more online universities and Free education for for the majority of people. So yeah, there could be a quite a cool thing coming from this But like I said actuarial science came from the black plague Okay question to you would have got the answer if you've listened to the awesome musical known as Hamilton So who was the second president of the United States of America? Thomas Jefferson wasn't he was I think third I think he comes afterwards when he creates the Democratic Republican Party But it was John Adams who succeeded George Washington for the Federalists James Madison was the president a little bit later and of course Benjamin Franklin Never actually was a president even though his face is on the American currency So question number three. We've got a picture of the person We're not going to read read the question except for the fact that this person helped Advise America where to drop the nuclear bomb. He actually worked on the project as well But James Durbin and Jeffrey Watson the reason why put those names in this because there is a test That looks at the ratio of the mean square of successive differences to the sample variances And it is called the Durbin Watson test But that distribution was discovered or found out or derived by John for Newman And that's why he is the answer and then also wanted to put in another relative person who kind of works around in that field But the answer here is John for Newman If you're doing subject cm2 or financial engineering You'll also see him because he's doing a lot of work on Expected utility theory. So yeah, quite a quite a smart guy and like I said, it was even working on the bomb interested in quantum mechanics as well So question number four. I mean this one is which river separates King Shasta and Brazzaville You'll know this is the Democratic Republic of Congo and the Congo. So it is the Congo River So quite an easy one to work out if you know your your African geography It's also the deepest river in the world and apparently it's so deep and the current is so weird that there's different types of fish living in different parts of the river like it's it's quite a cool place to to go to So yeah, it was the Congo River Question five Which distribution always has an undefined mean the levy distribution has a I think has an infinite mean But the undefined mean comes from the couchie and that is because it's its tails are so fat that you can't actually Calculate the mean even though it looks like you can and this is what makes it quite an interesting distribution I mean looking at that graph you would say I mean the purple one and the yellow one you'd say Oh, the mean is zero, but funny enough. It is undefined Fascinating things so not the inverse gamma and not the Pareto distribution Okay question number six. This was this crazy question about the train powered by fish Apparently, it's true. Okay, apparently in this country called Turk Medi Stein 1919 they had a shortage of coal So they took a whole bunch of dried up fish and they burnt it was like 9,000 tons of fish that they burnt up in Order to power their their trains. So the answers for question six was actually true Question seven was what is the crew death rate of the world and According to the CIA it is 7.7 per 1000 which is interesting because both South Africa and America is higher than 7.7 But remember crew death rates. It's crude for a reason. It's not I mean, it doesn't come for different ages and all those type of things, but you're crude death rate of the world Okay, the DC fans in what year did Wonder Woman first appear in the comics? I think it was Batman that was in 1938 or Superman in line So Superman and Batman were early on they were 38 39 and then it was Wonder Woman came in 1941 And I think superwoman came in 1959 So, yeah, that's kind of why if you've watched the movie of Wonder Woman She's fighting in like World War two because that's kind of when her comic came out Question nine, which Bernoulli was it? It was Jacob Bernoulli, Not Your Highland, Nicholas or Daniel Like I said, they they did a lot of stuff really really did a lot of things So quite a cool family to to check out big rivalry between them and Isaac Newton and his friends, but that is a that is a story for another day Question 10 who painted this picture of this guy looking looking out into the fog It was Casper David Friedrich Coral Friedrich Gauss, I mean, I think we all know him from mathematics I mean the normal distributions also known as the Gaussian distribution Real big heavyweight in mathematics Friedrich Nietzsche. He's the guy who's written a whole bunch of philosophical books They're quite quite an interesting read and then we have Friedrich Bezel Who I wonder if anybody knows who Friedrich Bezel is we're gonna talk a little bit more about Friedrich Bezel because the next question He was the answer. So it wasn't Coral Friedrich Gauss It was Friedrich Bezel and and him and Coral actually quite friends They were little pen pals and they met up in person No one knows what happened, but they did have a little bit of a falling out Friedrich Bezel was also very big in astronomy and he did something known as the stellar parallax, which is He was actually one of the first people from a scientific point of view to prove that the world was a or that the universe is a Heliocentric model or our solar system is heliocentric because yes You had Galileo and Caponius saying that the Sun is at the center and going against the geocentric view But when the Catholic Church came to and they said, okay, that's a cool theory Where's your your evidence and they you know, they had a few little bits of ideas and they said job But let's admit you need the main piece of evidence and that is if the earth is circling around the Sun Why aren't the stars moving in the sky? Why don't we see the stars moving and They they didn't know how to answer that it took Friedrich Bezel He did something called the stellar parallax where he measured the light coming from the stars or something like that And he was actually able to first scientifically prove That the Sun is at the center of our solar system and not the earth and he also Introduced this sample variance formula, which we see all the time in actual science Specifically in first year first year stats. So it's quite interesting to see this is the guy who said it should be n Minus one so fascinating stuff. Anyway question 12. This was the playing onologist is someone who collects Dolls so yeah, if you collect dolls you are a playing on an onologist The bills of mortality like I said if you're doing the ifo a exams You should not have got this wrong because it's 1990 1991 92 If you doing any of the other actual exams and you don't use that orange book of ours Then I will forgive you for not getting getting that one because otherwise that's a very specific question Question 14. What is post Malone's first real name? It is Austin Louie Louie Bell is a guy who helps write some of these songs and there is I think a basketball player called Coral Milan Coral Malone who many people thought post got his name from but according to him He just generated on a random hip-hop name generator. So yeah post Malone Apparently he's bringing out a covert 19 album. So that that could be quite fun This one was a little bit of a curveball because who contributed to the black skulls formula I mean Robert Jarrow created a different type of model a credit Portfolio model that used the mark of chains And actually built a little bit from this model or built from the Merton model So the Merton model was because these guys were so upset that their name wasn't included in the back black skulls The Merton model uses the same option pricing formula Instead of to calculate the prices of calls and puts they can use it to derive the probability That a company will default on its corporate bonds But the big trick here was that it's Robert C. Merton and not Robert K. Merton So Robert K. Merton is Robert C. Merton's dad and he was quite an intellectual guy in his own right He came up with terms like self-fulfilling prophecy and role model and was more in sociology than mathematics And then of course Robert J. Schiller is also someone who's won the Nobel Prize in economics So I thought this was quite a little bit of a curveball question Like I say if you've got K. Merton then Unfortunate it is Robert C. C. Merton Question 16. The answer was Argentina. They beat West Germany 3-2 Wasn't Brazil wasn't West Germany and I put Mexico down because I think that's where the 1986 final was held So, yeah, that was there was a little you could have a sports question You gotta have a sports question in a general knowledge quiz Question 17 coming back to actual science. Like I said, all of these guys were involved in some way of the efficient model hypothesis But at the end of the day the answer is Eugene Famer. He's a fascinating person highly intellectual but he doesn't believe in bubbles and There's a video on YouTube where he sits with Richard Taylor and they discuss bubbles and all these other things a really really recommend you watching it if you are interested in Investing and passive investment strategies and those kind of things so question 18 narrow and The reason why I know this one is because it is the same birthday as me I'm on the 15th of December although I'm a little bit later in 37 AD So that was emperor narrow, of course when they said he played a fiddle while Rome burnt I think it was metaphorical because I don't think fiddles were alive. We had been invented that early on But job that is that is emperor narrow one of the dark dark emperors of Rome Question 19 So what is the first name of Markov the Russian mathematician behind stochastic processes? Also a slight trick question because there is a Vladimir Markov Okay, and he's actually the brother to the Russian mathematician I'm referring to and he has done stuff in his own right But the guy who I'm looking at the main the main brother was was Andre Not Nikolai and not Anton and Then wrapping things up question 20 who measured the circumference of the earth during the Hellenic age was an Aristotle It was Aristotel Sinis era I said right last time but So some interesting things Aristotle I mean apparently there was a student who came up to Aristotle and said hey I think the earth spins and Aristotle said don't be ridiculous if the earth spins would all fall off This arrow guy era stop the things he was the head librarian at the great library of Alexander and Apparently what he did is he assumed that the Sun was very very far away and that therefore Sunrays were parallel and then using a little bit of Pythagorean mathematics and all those type of things he was able to calculate the circumference of the earth and he was surprisingly very very accurate and According to one account Christopher Columbus Read his work and he said to himself now now this guy thinks the world is too big I don't think the world is that big and he actually thought that the world was much smaller and Did his voyage and the thing is is that if he hadn't Underestimated this guy's account he probably never would have done the voyage because he would have figured out that there wasn't enough food To be kept in the boats in order to make that voyage remember from going from London to Japan You've got you've got two massive oceans to to go past the Pacific and the Atlantic so it's it just as well Christopher Columbus and Devalued this guy. Otherwise we yeah, I don't know maybe that we still wouldn't have found it But that is the the Greek guy who kind of found oh, I'm saying the Hellenic age Maybe Greek because I mean you was running around in Egypt, so we'll go with Hellenic instead of Greek But yeah, that kind of concludes the quiz like I said, please. Let me know in the comment section below What your score was I know I know everyone's gonna be shy and be like oh, I've got three out of 20 I'm not gonna put it down But that's why if you do even if you say one out of 20 or zero out of 20 you will stand a chance to win the Udemy course So please do that if you if you did attempt the quiz Hit the like button like I say if we get 50 likes we will make another quiz judging by everyone's comments we'll know if we made it too easy or too difficult and Yeah, if you haven't already please hit subscribe and check out my courses on Udemy I have been releasing a whole bunch of like snippets of them on the YouTube channel Just to kind of give you guys a taste of what's in the courses, but there's so much more content in Udemy I kind of preferred in the sense that okay when it makes money and to it tells you when you finished and it's it's more as Like an online classroom where YouTube YouTube is just a big Paddle of mess when it comes to videos So yeah, check out Udemy. I do have some free courses as well on Udemy So you can even go and sign up for those three courses and just test the system But other than that, thank you guys so much for watching and like I say if we get 50 likes we'll make round two