Company X tested its light bulbs to see how long they would last. On a production line, 2500 bulbs were taken and tested. The department in charge reported that out of 2500 bulbs, there were 2200 bulbs that burnt out after more than 1500 hours of use. Lucy purchased a light bulb from Company X. What is the likelihood that it will burn for more than 1500 hours? Write your answer in decimal form

Question

Company X tested its light bulbs to see how long they would last. On a production line, 2500 bulbs were taken and tested. The department in charge reported that out of 2500 bulbs, there were 2200 bulbs that burnt out after more than 1500 hours of use. Lucy purchased a light bulb from Company X. What is the likelihood that it will burn for more than 1500 hours? Write your answer in decimal form

Answer 1

The likelihood that the light bulb purchased by Lucy from Company X will burn for more than 1500 hours can be calculated as the number of bulbs that burnt out after more than 1500 hours divided by the total number of bulbs tested.

Likelihood = Number of bulbs that burnt out after more than 1500 hours / Total number of bulbs tested
Likelihood = 2200 / 2500
Likelihood = 0.88

Therefore, the likelihood that the light bulb purchased by Lucy from Company X will burn for more than 1500 hours is 0.88 in decimal form.