Question

In a certain country the probability that a baby that is born is a boy is 0.52 and the probably 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

Answer 1

Answer:

0.7504

Step-by-step explanation:

0 Girls = 0.52 x 0.52 = 0.2704

1 Girl = 0.52 x 0.48 = 0.2496

2 Girls = 0.48 x 0.48 = 0.2304

0.2704 + 0.2496 + 0.2304 = 0.7504