## Thinking Mathematically (6th Edition)

$\frac{3}{7}$
If A and B are dependent events, then P(A and B) = P(A)*P(B given that A has occurred) E: No Democrats A: Independents or Republicans B: Independents or Republicans given that one has already been selected P(A) = $\frac{10}{15}$ P(B) =$\frac{9}{14}$ P(E) = $\frac{10}{15}$ .$\frac{9}{14}$ P(E)=$\frac{3}{7}$