A used car lot has 24 cars 9 of the cars are General Motors

A used car lot has 24 cars. 9 of the cars are General Motors products. 5 of the cars are Toyotas, 4 of the cars are Fords and 6 are Hondas. A car is selected at random from the inventory of cars at the lot. What is the probability that it is either a Ford or General Motors automobile?

Solution

The required probability is:

P(a selected car is either Ford or General Motors automobile)

=P(F)+P(GM) (The intersection of these two events is zero)

=4/24+9/24

=0.17+0.375

=0.545