SOLUTION: Question text The weights of sophomore high school boys in a certain high school is known to be approximately normally distributed with a mean of 145 pounds and a standard deviati

Question 871256: Question text
The weights of sophomore high school boys in a certain high school is known to be approximately normally distributed with a mean of 145 pounds and a standard deviation of 18 pounds. In which interval is the greatest percentage of weights?
Select one:
a. Between weights of 150 pounds and 170 pounds.
b. Less than 151 pounds.
c. All the weights less than 137 pounds and greater than 155 pounds.
d. More than 147 pounds.
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
MEAN = 145, SD = 18
a. Between weights of 150 pounds and 170 pounds. OBVIOUSLY < 50%
b. Less than 151 pounds 68.05% ****
c. All the weights less than 137 pounds and greater than 155 pounds.
32.84+ 29.93% = 62.77
d. More than 147 pounds. OBVIOUSLY < 50%
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