Question

.
The mean weight of 500 males students at
a certain college is 151 lb. And the
standard deviation is 15 lb. Assume that
the weights are normally distributed
a]. How many students
students weigh between
120 and 155 lb.
b]. What is the probability that a randomly selected male student weighs less than 128 lbs ?​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

The mean weight of 500 male students at a certain college is 151 pounds (lb), and the standard deviation is 15 lb. Assuming that the weights are normally distributed, how many students weigh more than 181 lb.