According to Figure 9

question 13

Multiple Choice

According to figure 9.4 in the text, today single copies make up for what percent of circulation?

• A) 89.6%
• B) 5.1%
• C) 14.0%
• D) 10.4%

---

Definitions:

Symmetric

In mathematics and statistics, symmetric indicates that a shape, function, or distribution is mirror-like, showing balance around a central point or axis.

Standard Normal Table

A mathematical table used in statistics to find areas under the curve of a standard normal distribution for various z-scores.

Probabilities

Probabilities measure the likelihood or chance of a specific outcome or event occurring.

Z

Often referred to as the Z-score, which is a statistical measure that describes a value's relationship to the mean of a group of values.