P has 2 children. He has a son, Jatin. What is the probability that Jatin’s sibling is a brother?
A. \(\frac{1}{3}\)
B. \(\frac{1}{4}\)
C. \(\frac{2}{3}\)
D. \(\frac{1}{2}\)
Answer:A
P has 2 children. He has a son, Jatin. What is the probability that Jatin’s sibling is a brother?
A. \(\frac{1}{3}\) B. \(\frac{1}{4}\) C. \(\frac{2}{3}\) D. \(\frac{1}{2}\)