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Science-Related Homework Help Mathematics Topic started by: Catracho on Nov 21, 2018



Title: Find the expected value for the random variable.
Post by: Catracho on Nov 21, 2018
Find the expected value for the random variable.


Title: Re: Find the expected value for the random variable.
Post by: bio_man on Nov 21, 2018
As far as I'm concerned, you do this:

9(0.14)+12(0.24)+15(0.36)+18(0.18)+21(0.08)... the sum is your answer

A sample calculation (not from here is attached)...