1. In 2008 there were 23 million pager subscribers. By 2014 the number of subscribers increased to 77 million. What is the geometric mean annual increase for the period? (Round the final answer to 2 decimal places.)

Geometric mean annual increase for the period

? %

2. The number of items in a particular class is called the

Multiple Choice

a Class limit

b Class size

c Class frequency

d Class interval

3. Compute the geometric mean of the following percentage increases: 4, 7, 9, 12, 13, 12, 11, and 9. (Round the final answer to 1 decimal place.)

The geometric mean? %

4. The general process of gathering, organizing, summarizing, analyzing, and interpreting data is called

Multiple Choice

a levels of measurement.

b inferential statistics.

c descriptive statistics.

d statistics.

5. A bar chart is used most often when

Multiple Choice

a you want to show frequencies by class intervals.

b you want to display frequencies by category.

c you want to show frequencies as compared to total observations.

d you want to organize data along a certain time interval.

6. In June an investor purchased 320 shares of Oracle stock (an information technology company) at $21 per share. In August, she purchased an additional 410 shares at $27 per share. In November, she purchased an additional 410 shares, but the stock declined to $26 per share. What is the weighted mean price per share? (Round the final answer to 2 decimal places.)

Weighted mean?$