5.2 Part 4/6: Uniform Distribution Comprehensive Example - Lunch Time | Elementary Stats

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On question b) for expected value, I thought it was 1/2(10+55) because b is 55?

brandycotter
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The video is a little confusing. You used 45 as the maximum value when it's supposed to be 55. Everyone following along to the video will have different answers than yours. Using a= 10 & b=55 will give the following answers: E(x)= 32.5 var(x)= 168.75 Standard Dev.= 13 (Rounded up)

nikcreighton