Asked by Shawn
There are 4 children in a family, Find the probability that there is atleast 1 boy if it is equally likely to have a boy or girl?
Answers
Answered by
Reiny
prob(at least 1 boy of 4 kids)
= 1 - prob(all girls)
= 1 - (1/2)^4
= 1 - 1/16
= 15/16
= 1 - prob(all girls)
= 1 - (1/2)^4
= 1 - 1/16
= 15/16
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