Question

At the Stop 'n Go tune-up and brake shop, the manager has found that an SUV will require a tune-up with a probability of 0.6, a brake job with a probability of 0.1 and both with a probability of 0.02. What is the probability that an SUV requires either a tune-up or a brake job

Answer 1

The question is looking for the probability of either one, so you take the sum of the individual probabilites 0.6 + 0.1 = 0.7.

This sum, however, counted the overlap between the probabilities twice, so subtract that value once to account for that: 0.7-0.02 = 0.68.

Answer 2

what value am i subtracting?

Answer 3

how do i get .02

Answer 4

omg durrr lol

Answer 5

thank u

Answer 6

Sorry I wasn't clear about that, I meant to say where that came from, but skipped over it somehow.