Question

Amy has 3 children, and she is expecting another baby soon. Her first three children are girls. What is the probability that the fourth baby is another girl?

A)
0


B)
0.06


C)
0.25
Eliminate

D)
0.5

Answer 1

B) 0.06

Explanation:

This will make the fourth child; we want the probability that all 4 children are girls.

The probability of having a girl with each child is independent; this means that having 1 girl does not affect your chances of having another girl.

This means the probabilities can be multiplied:

0.5(0.5)(0.5)(0.5) = 0.0625

Answer 2

D

Explanation:

Just like heads or tails boy or girl 50 50 chance