## Thinking Mathematically (6th Edition)

$\frac{11}{21}$
If A and B are dependent events, then P(A and B) = P(A)*P(B given that A has occurred) E: No Independents. A: Democrats or Republicans B: Democrats or Republicans given that one has already been selected P(A) = $\frac{11}{15}$ P(B) =$\frac{10}{14}$ P(E) = $\frac{11}{15}$ .$\frac{10}{14}$ P(E)=$\frac{11}{21}$