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

Answer:

45.45 batteries

Step-by-step 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:

$E= \frac{1}{11}*500\\E=45.45\ batteries$

45.45 batteries are expected to be defective.