Multiple Choice
The number of cell phone minutes used by high school seniors follows a normal distribution with a mean of 500 and a standard deviation of 50.What is the probability that a student uses fewer than 400 minutes?
A) 0
B) 0.023
C) 0.159
D) 0.977
E) None of the above
Correct Answer:
Verified
Correct Answer:
Verified
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