Company X tested its light bulbs to see how long they would last. On a production line, 2,500 bullbs 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.

Answer 1

The likelihood that a light bulb from Company X will burn for more than 1,500 hours can be calculated using the formula:

Number of bulbs burnt for more than 1,500 hours / Total number of bulbs tested

Using the data provided:
Number of bulbs burnt for more than 1,500 hours = 2,200
Total number of bulbs tested = 2,500

Likelihood = 2,200 / 2,500 = 0.88

Therefore, the likelihood that a light bulb from Company X will burn for more than 1,500 hours is 0.88.