M 362K, Spring 03, Smith

## Assignment for Wednesday, October 15

1. Read: Section 4.5, p. 195, and Example 3a on pp. 196 - 197

2. Do practice problems: p. 176 #37, 38, p. 233 #7, and the following problem:

The time it takes (in hours) for a student to finish an aptitude test is
modeled by the probability distribution with density function

6(x - 1)(2 - x)
if 1 < x < 2

f(x) =

0 otherwise

Find the mean and standard deviation of the time it takes a randomly selected
student to finish the aptitude test.