In a certain country, the probability that a baby that is born is a boy is 0.52 and the probability that a baby that is born is a girl is 0.48. A family has two children. If X is the number of girls born to a family, find the probability that the family has 0, 1, or 2 girls.

Create the binomial distribution table for P (X).

You put this as the answer but on P(1 girl ) = 2C1 * (.52)(.48) ≈ .50, there's a C between the 2 and 1, what does that mean?

P(0 girls) = (.52)^2 ≈ .27

P(1 girl ) = 2C1 * (.52)(.48) ≈ .50

P(2 girls) = (.48)^2 ≈ .23

Thanks so much!

Guest Apr 15, 2019