SOLUTION: Suppose that a family has 5 children. Also, suppose that the probability of having a girl is 1/2. Find the probabilities that the family has the following children.
1. Exactly 2
Algebra ->
Probability-and-statistics
-> SOLUTION: Suppose that a family has 5 children. Also, suppose that the probability of having a girl is 1/2. Find the probabilities that the family has the following children.
1. Exactly 2
Log On
Question 304391: Suppose that a family has 5 children. Also, suppose that the probability of having a girl is 1/2. Find the probabilities that the family has the following children.
1. Exactly 2 girls and 3 boys Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Suppose that a family has 5 children. Also, suppose that the probability of having a girl is 1/2. Find the probabilities that the family has the following children.
1. Exactly 2 girls and 3 boys
-----------
P(x = 2) = 5C2(1/2)^2(1/2)^3 = 10*(1/2)^5 = 10/32 = 5/16
---------------
Cheers,
Stan H.
(