Multiple Choice
The expected (mean) life of a particular type of light bulb is 1,000 hours with a standard deviation of 50 hours.The life of this bulb is normally distributed.What is the probability that a randomly selected bulb would last fewer than 1100 hours?
A) 0.4772
B) 0.9772
C) 0.0228
D) 0.5228
E) 0.5513
Correct Answer:
Verified
Correct Answer:
Verified
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