Mathematics · Statistics
For quality control, a company that manufactures lightbulbs conducted five different trials. In each trial, 500 different lightbulbs were tested. The number of defective lightbulbs found in trials 1 through 5 were 3, 5, 4, 6, and 3, respectively. What is the mean number of defective lightbulbs for the five trials?
- 15.0
- 24.6
- 34.2✓
- 44.0
Correct answer
4.2
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