2000017505

SubArea: 
Probability
Level: 
A
Project ID: 
2000017505
Accepted: 
0
Clonable: 
0
Easy: 
0
A family has 4 children. What is the probability that 3 of them are girls? Suppose that the probability of giving birth to a boy and a girl in the family is the same.
0.25
0.4
0.75
0.89
Fixed Answer: 
None