SOLUTION: We have 7 boys and 3 girls in our school choir. There is an upcoming concert in the local town hall. Unfortunately, we can only have 5 youths in this performance. This performance

Algebra ->  Probability-and-statistics -> SOLUTION: We have 7 boys and 3 girls in our school choir. There is an upcoming concert in the local town hall. Unfortunately, we can only have 5 youths in this performance. This performance       Log On


   



Question 1056177: We have 7 boys and 3 girls in our school choir. There is an upcoming concert in the local town hall. Unfortunately, we can only have 5 youths in this performance. This performance team of 5 has to be picked randomly from the choir of 7 boys and 3 girls.

My Questions below
a. What is the probability that all 3 girls are picked in this team of 5?
b. What is the probability that none of the girls are picked in this team of 5? c. What is the probability that 2 of the girls are picked in this team of 5?

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
10T: 7B and 3G
chose 5
P(3G, 2B) = (3C3)(7C2)/(10C5)
P(5B) = (3C0)(7C5)/(10C5)
P(2G,3B) = (3C2)(7C3)/(10C5)