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Question
Quality control is an important issue at ACME Company, which manufactures light bulbs. To test the life-hours of their light bulbs, they randomly sampled nine light bulbs and measured how many hours they lasted: 378, 361, 350, 375, 200, 391, 375, 368, 321.What is the mean?
A. 375
B. 368
C. 389.9
D. 200
E. 346.6
Answer
This answer is hidden. It contains 2 characters.
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