#### Answer

0.078

#### Work Step by Step

If A, and B are independent events, then
P(E) = P(A)*P(B)
a.) What are the chances that two people who are cigarette smokers suffer from depression?
A: depression
B: depression
P(A) = 0.28
P(B) =0.28
P(E) = P(A)*P(B)
P(E) =0.28 x0.28
=0.078