A factory produced 5,000 light bulbs. The manager selects a random sample of 120 light bulbs to check for defects. He finds that 3 light bulbs are defective. How many light bulbs out of 5,000 should the manager predict to be defective?

Total number of bulbs produced=5000

total number of samples=120

number of defective=3

Probability that a bulb selected at random is defective will be:

3/120=0.025

The total number of bulbs that could be defective out of 5000 bulbs produced will be:

5000 (0.025) = 125 bulbs