Question

A family has 4 children. A child is selected at random from the family. Assuming that there are equal number of boys and girls in the family, the probability that the selected child is a girl is

• A. $\frac{1}{6}$
• B. $\frac{1}{4}$
• C. $\frac{2}{3}$
• D. None of these

Answer 1

Answer: (D)

None of these

Let's denote girls with G and boys with B
since the no. of boys and girls are equal $P\left(G\right)=P\left(B\right)=0.5$
hence $P\left(G\right)=\frac{1}{2}$
Hence the correct answer is D