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 longer than 1150 hours?
A) 0.4987
B) 0.9987
C) 0.0013
D) 0.5013
E) 0.5513
Correct Answer:
Verified
Correct Answer:
Verified
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