## The Normal Distribution: Exercise #3

**Objective:** Compute probabilities and quantiles
from normal distributions of daily employee absences per 100 employees before and after a health improvement program.

**Problem Description:** A large corporation has (on
the average) 5 absences per 100 employees per day and a standard
deviation of 1 absence. After a health improvement program, the mean
number of absences was reduced to 4 absences per 100 employees and the standard deviation was reduced to 0.8 absence.

The following normal Java applet displays the
probabilities of a normal random variable, *X*, with a mean of
5 absences and a standard deviation of 1 absence. Use this applet to
answer the questions below.