Answer:
( a ) is the right answer .
Step-by-step explanation:
P(E) = 0.48
Probability of being male = .48
Probability of being female = .52
P(F) = 0.72
Probability of being in state = .72
Probability of being out of state = .28
P(G) = 0.55
Probability of being in at least 20 years = .55
Probability of being less than 20 = .45
a )
P(student is an in-state male younger than 20)
= .72 x .48 x .45 = .1555 = .156
b )
P(student is an out-of-state female younger than 20)
= .28 x .52 x .45
= .065
c )
P(student is an in-state female younger than 20)
= .72 x .52 x .45 = .168
d )
P(student is an out-of-state male at least 20)
= .28 x .48 x .55 = .074
So , ( a ) is the right answer .
