Question

A used car dealer has 150 used cars on his lot. The dealer knows that 30 of the cars are defective. One of the 150 cars is selected at random. What is the probability that it is defective?

Answer 1

Answer: 0.20

Step-by-step explanation:

The answer is 0.20 because the probability of picking a defective car can be found using the following fraction:

# of defective cars/#of total cars

# of def. cars = 30

# of total cars = 150

thus the fraction = 30/150

which can be simplified down to 0.20