A survey is made in a neighborhood of 80 voters. 65 are Democrats and 15 are Republicans. Of the Democrats, 35 are women, while 5 of the Republicans are women. If one subject from the group is randomly selected, find the probability the individual is either a woman or a Democrat.
A) .538
B) .813
C) .500
D) .438
E) .875

Question

Quizplus · Accepted Answer

P(W ∪ D) = P(W) + P(D) - P(W ∩ D)
= (40/80) + (65/80) - (35/80) = .877

A Survey Is Made in a Neighborhood of 80 Voters