Expected Value: E(X)
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What if there are an infinite number of possible outcomes?
Like for a continuous function.
The individual probability is ~0 for any one exact number.
How would I get an expected value
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@petershayo donate! khanacademy . org/contribute
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you should get paid for this, seriously
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the video is admitted alright, though it doesn't really help with applying this to more forms in probability theory if you already understand this basic concept. real problem? if he says "arithmetic (n.) mean" one more time I will have to randomly distribute tacks all over his tongue.
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Great video, thanks for uploading!
Two questions though...
The first value, when you multiply the probability by 0 (no heads), even if you multiply it by 0=0, you still have to put that probability (0.09278) in the SUM.
Second, why do we get the Expected value of 3, while when you calculate the arythmetic mean is 3.5? Should they both be the same? I really appreciate your response, thanks a lot!
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PLEEESSE make videos for quantum mechanics. This is so close, carries the base ideas, but using them with electrons looses me.
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#NUM! #NUM! #NUM! #NUM! #NUM! #NUM! #NUM! #NUM! #NUM! #NUM!
lol, I need to learn how to use MSexcel now!
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@khyer123 based on what you just saud, we may go to the same school!! lol
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THANK YOU! I'm currently taking a class called Probability and Engineering Application with an absolutely awful professor who can't explain anything, and who wrote a book which is just as unhelpful. Thanks for going over this stuff clearly :)
khyer123 2 years ago 33
It can't get simpler than this.
thefragile900 2 years ago 22