Multiple Choice
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
Correct Answer:
Verified
Correct Answer:
Verified
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