1. The percent of fat calories that a person in America consumes each day is normally distributed with a mean of about 36 and a standard deviation of about ten. Suppose that 16 individuals are randomly chosen. Let \overline{X}X= average percent of fat calories.

For the group of 16, find the probability that the average percent of fat calories consumed is more than five.

.7

.8

.9

.95

1

2. From January through December 2012, Gallup interviewed more than 170,000 employed Americans 18 years of age or order. The graph shown is compiled from data collected by Gallup. The Emotional Health Index Scores are the sample space. We randomly sample one Emotional Health Index Score.

What is the probability that the selected Emotional Health Index Score is less than 80.2 given that it is already less than 81.

0.4385

0.4156

0.4286

0.4137

0.4596