What is the probability that a couple with four children have atleast one girl?

What is the probability that a couple with four children have atleast one girl?

A 0.0625

B 0.9375

C 0.5

D 0.0257

Solution

Correct Answer: Option B

Here,n = 4(children)

P(girl)= 0.5

P(of atleast one girl)= 1 - P(no girls)

= 1 - 0.0625 = 0.9375