Normal probability distribution

Review of the normal density function and its key properties

Category:

Education

Tags:

• Excel
• Quant
• Finance

[danish234]

i think he forgot to multiply the standard deviation while putting the data in excel fo the Y formula

[bionicturtledotcom]

@danish234 yes, i think I did. My bad, the plot charts the formula so i didn't notice. Nice catch

[pacificlureco]

Cut the loud and unnecessary music and it's a fine example.

[bionicturtledotcom]

@pacificlureco lol, i agree: this was one of my first videos > 2.5 years ago. I don't open with music anymore. thank you

[awolvesdestiny]

for the most part this was correct but calling that graph slightly positively skewed is wrong it would be negatively skewed because the longer tail goes to the left

[bionicturtledotcom]

nope: skew for this dataset is postive: + 0.76

[mirage2000sp]

q dijo?

jaja

[digitalaccess25]

@bionicturtledotcom

Fantastic presentation.

I have another comment on the placement of Z in the pdf formula. Z = (x-mean)/std dev. So I guess the Z should appear in the numerator of the exponential value.

[J450nR]

Oh god. All that work is one line of R code. plot(dnorm()). Seriously, drop Excel like the bitch it is and use a language like R or MATLAB.

[youngskywalkere10]

fuck!!!!!!!! i have a test tmrw and im FUCKED

[josgog]

fuck ye

[curry136]

god i hate math

[danish234]

i think he forgot to multiply the standard deviation in while putting the data in excel fo the Y formula