Exam 2: Presenting Data in Tables and Charts

TABLE 2-1 The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a DVD player made by the company over the past 12 months are satisfied with their products. -Referring to Table 2-1, the possible responses to the question "How much time do you use the DVD player every week on the average?" are values from a

The possible responses to the question "How many times in the past three months have you visited a city park?" are values from a discrete variable.

You have collected data on the monthly seasonally adjusted civilian unemployment rate for the United States from 1998 to 2007. Which of the following is the best for presenting the data?

In purchasing an automobile, there are a number of variables to consider. The body style of the car (sedan, coupe, wagon, etc.) is an example of a ________ variable.

Percentage polygons are plotted at the boundaries of the class groupings.

The Dean of Students conducted a survey on campus. Major area of study is an example of a ________ variable.

Marital status is an example of an ordinal scaled variable.

TABLE 2-10 The frequency distribution below represents the rents of 250 randomly selected federally subsidized apartments in Minneapolis. -Referring to Table 2-10, the percentage of apartments renting for less than $600 is ________.

TABLE 2-12 The ordered array below resulted from taking a sample of 25 batches of 500 computer chips and determining how many in each batch were defective. Defects -Referring to Table 2-12, construct a cumulative percentage polygon for the defects data if the corresponding frequency distribution uses "0 but less than 5" as the first class.

TABLE 2-9 The Stem-and-Leaf display represents the number of times in a year that a random sample of 100 "lifetime" members of a health club actually visited the facility. -Referring to Table 2-9, the person who visited the health club more than anyone else in the sample visited the facility ________ times.

TABLE 2-1 The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a DVD player made by the company over the past 12 months are satisfied with their products. -Referring to Table 2-1, the possible responses to the question "How many DVD players made by other manufacturers have you used?" are values from a

An insurance company evaluates many numerical variables about a person before deciding on an appropriate rate for automobile insurance. The distance a person drives in a year is an example of a ________ numerical variable.

The number of defective apples in a single box will be measured on an interval scale.

A personal computer user survey was conducted. Computer brand primarily used is an example of a ________ variable.

TABLE 2-15 The table below contains the number of people who own a portable DVD player in a sample of 600 broken down by gender. -Referring to Table 2-15, ________ percent of the 600 did not owned a portable DVD.

TABLE 2-14 Given below is the stem-and-leaf display representing the amount of detergent used in gallons (with leaves in 10ths of gallons) in a month by 25 drive-through car wash operations in Phoenix. -Referring to Table 2-14, if a percentage histogram for the detergent data is constructed, using "9.0 but less than 10.0 gallons" as the first class, the percentage of drive-through car wash operations that use "12.0 but less than 13.0 gallons" of detergent would be ________.

The larger the number of observations in a numerical data set, the larger the number of class intervals needed for a grouped frequency distribution.