Probability question

Question

According to the U.S Census Bureau Data, 60% of those eligible to vote actually do vote. If 2 eligible voters are chosen at random, what's the probability they both vote?

 

A)0.036

B) 0.16

C) 0.33

D) 0.36  <=== this is the answer listed on the study sheet, but I cannot seem to figure out how they got this answer

Answer 1

Pr (first person votes) = 0.6

Pr (second person votes) = 0.6

Pr (Both vote) = (0.6)(0.6) = 0.36

 

These are independent events, so you just multiply the probability that each selected person votes.