SOLUTION: Assume the probability is 1/2 that a child is born a girl. If a family has three children, what is the probability that they have a) exactly one girl, b) at most two girls.
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-> SOLUTION: Assume the probability is 1/2 that a child is born a girl. If a family has three children, what is the probability that they have a) exactly one girl, b) at most two girls.
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Question 324363: Assume the probability is 1/2 that a child is born a girl. If a family has three children, what is the probability that they have a) exactly one girl, b) at most two girls.
The probability of getting exactly one girl is [ ]? Answer by Fombitz(32388) (Show Source):
You can put this solution on YOUR website! Look at the 8 possibilities
BBB
BBG
BGB
BGG
GBB
GBG
GGB
GGG
a) P(exactly 1 G)=3/8
b) P(at most 2 G or less than 3 G)=7/8
