Chapter 13.3, Problem 37E

To determine

To describe: The error in interpreting the given graph.

Answer to Problem 37E

The error is explained below.

Explanation of Solution

Given:

The graph is:

  

Figure 1

The percent of elementary school students who responded “no” is more than twice the percent of middle school students who responded “no”.

Calculation:

Whenever a graph is studied, rather than a generalized statement, a specific interpretation should always be provided.

So, from the graph, the percent who respond to “no” in the elementary school is approximately 67 and the percent corresponding to the middle school is 55.

So the interpretation becomes:

The percent of elementary school students who responded “no” is 67 whereas the percent of middle school students who responded “no” is 55.