Question

Jenny plans to have two children but doesn't know if they are boy-boy, girl-girl, or boy-girl. What is the probability that she will have two boys?
0.5

0.25

0.75

1.00

Answer 1

Combinations are:
B B  ( both boys )
B G  ( first boy, than girl )
G B ( first girl, than boy )
G G ( both girls )
P ( B B ) = 1 / 4 = 0.25
Answer: B ) 0.25

Answer 2

Answer:

Option B. 0.25 is the answer.

Step-by-step explanation:

Jenny plans to have two children but does not know if they are boy-boy, girl-girl, or boy-girl.

there are 4 combinations :

Boy, Boy (BB)

Girl, Girl (GG)

Girl, Boy (GB) first girl then boy

Boy, Girl (BG) first boy then girl

so out of 4 combination the probability of two boys are = 1/4 = 0.25

Option B. 0.25 is the answer.