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Expected Value  TOPIC_SOLVED

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Expected Value

Postby theawkwardcellist on Wed Jun 13, 2012 11:40 pm

1. If the probability of a boy's being born is 1/3, and a family plans to have 6 children, what is the expected number of boys?
(A)1
(B)2
(C)3
(D)5
(E)6
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Re: Expected Value  TOPIC_SOLVED

Postby maggiemagnet on Thu Jun 14, 2012 5:35 pm

theawkwardcellist wrote:1. If the probability of a boy's being born is 1/3, and a family plans to have 6 children, what is the expected number of boys?

What did you get when you multiplied?
:clap:
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