Assume that a set of test scores is normally distributed with a mean of 80

and a standard deviation of 40.

Find probabilities that

a) The score is less than 80.

b) The score is greater than 100.

c) The score is between 40 and 100.

(Round to one decimal place as needed.)

You can use Online Applet for Normal distribution or the 68-95-99.7 rule.