A survey reported that the mean starting salary for college graduates after a three-year program was $33,870.Assume that the distribution of starting salaries follows the normal distribution with a standard deviation of $3490. What percentage of the graduates have starting salaries:(Roundz-score computation to 2 decimal places and the final answers to 4 decimal places.)

a.Between $31,800 and $38,600?

Probability

b.More than $42,100?

Probability

c.Between $38,600 and $42,100?

Probability