Question 871256
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%