Question

Company X tested its light bulbs to see how long they would last. On a production line, 2,500
bulbs were taken and tested. The department in charge reported that out of 2,500
bulbs, there were 2,200
bulbs that burnt out after more than 1,500
hours of use. Lucy purchased a light bulb from Company X. What is the likelihood that it will burn for more than 1,500
hours? Write your answer in decimal form.(1 point)

Answer 1

Use the relative frequency: probability ≈ 2200 / 2500 = 0.88.

So the likelihood is 0.88.