Question

The probability of giving birth to a boy is 50%. find the probability that at most there are 3 boys out of 10 births.

Answer 1

S=Sample Space
n(S)=no. of total outcomes of sample space
= 50%×10=5
n(E)=no. of favourable events=3
Probability of giving birth to boy is,
P(B)=n(E)/n(S)
=3/5....Ans