family has 5 kids: find prob. of having no more than 3 boys

[kvm113]

A family has five children. The probability of having a girl is 1/2. What is the probability of having no more than 3 boys?

 

[royhaas]

Re: Probability Question #2

Assume independence. Do you understand the binomial distribution? No more than 3 boys is the same as at least 2 girls. The probability of boy or girl is the same. Boys+Girls = 5.