SOLUTION:
Find the probability that when a couple has four children, at least one of them is a boy. (Assume that boys and girls are equally likely.)
Algebra.Com
Question 1146042:
Find the probability that when a couple has four children, at least one of them is a boy. (Assume that boys and girls are equally likely.)
Answer by greenestamps(13200) (Show Source): You can put this solution on YOUR website!
The opposite ("complement") of "at least one a boy" is "none are boys", so
P(at least one a boy) =
1 - P(none are boys) =
1-(1/2)(1/2)(1/2)(1/2) = 1-1/16 = 15/16
RELATED QUESTIONS
Find the probability that when a couple has two children, at least one of them is a... (answered by ikleyn)
Find the probability that when a couple has two children, at least one of them is a boy.... (answered by ikleyn)
Assume that the probability of a boy being born is the same as the probability of a girl... (answered by stanbon)
Find the probability of getting at least one girl when a couple has five children. Assume (answered by stanbon)
A couple has two children and at least one is a boy. What is the probability that they... (answered by math_helper)
Probability of a girl; Assuming that boys and girls are equally likely, (.50) find the... (answered by jim_thompson5910)
Find the probability of a couple having a boy when their 6th child is born, given that... (answered by Fombitz)
If a couple has three children, what is the probability that they have at least one... (answered by Theo)
Assuming that each child has the probability 0.5 being a boy. Find the probability that a (answered by DrBeeee)