Receivers 2010 NFL data from the 2010 football season reported the number of yards gained by each of the league’s 191 wide receivers: The mean is XXXXXXXXXXyards, with a standard deviation of 362.4...

Receivers 2010 NFL data from the 2010 football season reported the number of yards gained by each of the league’s 191 wide receivers:

The mean is 397.15 yards, with a standard deviation of 362.4 yards.

 a) According to the Normal model, what percent of receivers would you expect to gain more yards than 2 standard deviations above the mean number of yards?

 b) For these data, what does that mean?

c) Explain the problem in using a Normal model here.