Question

The bumper car ride at the state fair has 3 red cars, 4 green cars, and 2 blue cars. Joe is first in line for the ride and is assigned a car at random. Bill in next in line and is randomly assigned a car. What is the probability that both joe and bill will drive a red bumper car? Express your answer as a percent. If necessary, round your answer to the nearest tenth.

Answer 1

9 cars, 3 of which are red

so prob(red,red) = (3/9)(2/8)
= 1/12

you do the decimal stuff

Answer 2

8.3