1. If you were graphing the total acres of farmland in each of the states in the United States Midwest, which of the following graphs would be most appropriate?

A. Histogram
B. Line Graph
C. Frequency Polygon
D. Bar Graph

2. You may have heard or read that the normal body temperature (oral) for humans is 98.6 °F. The numbers below are temperature readings from healthy adults, aged 18 to 40. Arrange the data into a grouped frequency distribution, using 99.3 - 99.5 as the highest class interval and 96.3 - 96.5 as the lowest. (Data is based on Mackowiak, Wasserman, & Levine, 1992).

**The answer is ** d. Bar Graph. A bar graph is the most appropriate graph to use to represent the total acres of farmland in each of the states in the United States Midwest.

Why is a bar graph the most appropriate?

This is because a bar graph is used to represent categorical data, and the total acres of farmland in each state is a categorical variable.

The grouped frequency distribution is as follows:

Class Interval Frequency

96.3 - 96.5 0

96.6 - 96.8 0

96.9 - 97.1 0

97.2 - 97.4 0

97.5 - 97.7 0

97.8 - 98.0 2

98.1 - 98.3 1

98.4 - 98.6 3

98.7 - 98.9 2

99.0 - 99.2 1

99.3 - 99.5 1