# Question

Applet Exercise demonstrates that probability is equal to area under a curve.

Given that college students sleep an average of 7 hours per night, with a standard deviation equal to 1.7 hours, use the scroll bar in the applet to find:

a. P(a student sleeps between 5 and 9 hours)

b. P(a student sleeps between 2 and 4 hours)

c. P(a student sleeps between 8 and 11 hours)

Given that college students sleep an average of 7 hours per night, with a standard deviation equal to 1.7 hours, use the scroll bar in the applet to find:

a. P(a student sleeps between 5 and 9 hours)

b. P(a student sleeps between 2 and 4 hours)

c. P(a student sleeps between 8 and 11 hours)

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