You have a set of data about dropout rates for a local college, and you have already determined that, on average, 305 students drop out per year...

1.    You have a set of data about dropout rates for a local college, and you have already determined that, on average, 305 students drop out per year with a standard deviation of 50. Calculate the likelihood (probability) that next year's number of dropouts will be:

a.    Less than 250

b.    More than 350

c.     Between 250 and 350

d.    Between 350 and 375