Exam 2: Summarizing Data: Listing and Grouping

In a stem-and-leaf display, each digit to the right of the vertical line is called a _______.

The Highway Patrol, using radar, checked the speeds (in $\mathrm{mph}$ ) of 30 passing motorists at a checkpoint. The results are listed below. Construct a dot diagram for the data.

A class mark is defined as the average of _______

The following are three daily pizza sales in units for a local pizza restaurant for the past two weeks: $228,252,310,305,165,182,312,182,171,285,307,281,234,175$ -For this data, construct a stem-and-leaf display with the stem labels 1, 2, and 3 (and, hence, with two-digit leaves).

In a cumulative "less than" distribution, the classes are labeled using

A numerical distribution is the same as a _______ distribution.

The heights (in inches) of 30 adult males are listed below. Construct a Pareto diagram in the form of a bar chart for the data. (Remember, in a Pareto diagram, the data is arranged in descending order.) 70 72 71 70 69 73 69 68 70 71 67 71 70 74 69 68 71 71 71 72 69 71 68 67 73 74 70 71 69 68

A study was conducted to determine how people get jobs. Four hundred subjects were randomly selected and the results are listed below. Construct a pie chart of the data.

For the data below, construct an ogive.

Table 1 A sample of 80 company employees is grouped into a table based on their weekly salaries: -From the data in Table 1, construct a cumulative "or less" distribution.

For the data below, construct an ogive.

For a frequency distribution, we can never find the total of all the original scores.

A stem-and-leaf display contains no more information than a frequency distribution.

A sample of 18 tries to connect to an online service using a phone line. -The numbers 27 and 47 are examples of

A study was conducted to determine how people get jobs. Four hundred subjects were randomly selected and the results are listed below. Construct a Pareto diagram in the form of a bar chart for the data. (Remember, in a Pareto diagram, the data is arranged in descending order.)

The Highway Patrol, using radar, checked the speeds (in mph) of 30 passing motorists at a checkpoint. The results are listed below. Construct an ogive using six classes.

If categories of a distribution differ in kind rather than degree, the resulting table is called a _______.

In a study of the growth of termite hills in the desert, an experiment was performed to determine how well the height of such hills can be determined from aerial photographs. Following are the heights of 36 termite hills (in centimeters) estimated from aerial photographs, $x$ , and measured on the ground, $y$ : Produce a two-way frequency distribution with the classes 200-219, 220-239, 240-259, 260-279, and 280-299 for both variables.

A class interval can be defined as a _______

In a cumulative "more than" distribution, the classes are labeled using