Ignoring twins and other multiple births,assume babies born at a hospital are independent events with the probability that a baby is a boy and the probability that a baby is a girl both equal to 0.5.Define event B = {at least one of the next two babies is a boy}.What is the probability of the complement of event B?
A)0.125
B)0.250
C)0.375
D)0.500

Question

Quizplus · Accepted Answer

The complement of event B is that neither of the next two babies is a boy, which means both are girls. The probability of both babies being girls is 0.5 * 0.5 = 0.25.

Ignoring Twins and Other Multiple Births,assume Babies Born at a Hospital