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?

Question

Write your answer in decimal form pls.

Answer 1

The probability that a light bulb from Company X will burn for more than 1,500 hours is 0.88.

Probability = Number of bulbs that burnt out after more than 1,500 hours of use / Total number of tested bulbs
Probability = 2,200 / 2,500 = 0.88