Assume that the weights of college football players are normally distributed with a mean of 205 pounds and a standard deviation of 30.
a. What percentage of players would have weights greater than 205 pounds?
b. What percentage of players would weigh less than 250 pounds?
c. Ninety percentage of players would weigh more than what number of pounds?
d. What percentage of players would weigh between 180 and 230 pounds?