(4^-1/2^-2)^2
= 4^(-1*2) / 2^(-2*2)
= 4^-2 / 2^-4
= 2^4 / 4^2
= 16 / 16
= 1
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Answer:
After the first 2 children are born, whatever their sex, the chance of having either a boy or a girl is 1/2 or %50. ( Independent event)
Prior to having any children the chance of having 3 children that are girls is 1/2 x 1/2 x 1/2 = 1/8 or %12.5 ( Dependent event)
Step-by-step explanation:
The snowfall in city b would be 7.7 inches I think
