Question

A factory makes car batteries. The probability that a battery is defective is 1/11. If 500 batteries are tested, about how many are expected to be defective?

Answer 1

45

Explanation:

Answer 2

45.45 batteries

Explanation:

The probability of any random battery being defective is 1 in 11, the number of expected defects in a population of 500 batteries is given by:

`E= (1)/(11)*500\\E=45.45\ batteries`

45.45 batteries are expected to be defective.