2 Chapter Review

When constructing a frequency distribution table, the first two classes are 0.00 - 0.99 and 1.0 - 1.99. What is the class width?

Again the first two classes are 0.00 - 0.99 and 1.0 - 1.99. Identify the class boundaries of the first class.

The first class described in the first question has a frequency of 51. If you know only the class limits and the frequency of 51, can you identify the original 51 data values?

• Yes

• No

A stem plot is created from intervals (min) between eruptions of the Old Faithful geyser in Yellowstone. One row reads 6 I 1222279. Identify the values (in minutes) represented by that row.

In the daily pick 4 lottery, four digits between 0 and 9 inclusive are randomly selected each day. We expect each of the ten different digits will occur about 1/10 of the time. Is this distribution a normal distribution?

• Yes

• No

In an investigation of the travel costs of college students, which of the following does not belong:

• center

• variation

• distribution

• bar graph

• outliers

In an investigation of the relationship between SAT scores and grade point averages (GPA) of college students, which of the following graphs is most helpful:

• histogram

• pie chart

• scatterplot

• stemplot

• dotplot

What characteristic can be better understood by creating a histrogram?

• The maximum

• The mean

• The distribution

• The outliers