Question

There are 12 boys and 18 girls in Mr. Spano's

math class. If he randomly calls on three
students for answers to an assignment, what
s the probability that all three are girls?
Assume he does not call on the same
tudent more than once.

Answer 1

P(X)= .2
12+18= 30 students.
18/30 = .6 17/29= 0.586206896551724 16/28= 0.571428571428571
.6 x 0.586206896551724 x 0.571428571428571 = 0.200985221674877