Pearson eText Business Statistics: First Course -- Instant Access (Pearson+)
Pearson eText Business Statistics: First Course -- Instant Access (Pearson+)
8th Edition
ISBN: 9780136880974
Author: David Levine, David Stephan
Publisher: PEARSON+
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Chapter 1, Problem 1.7AC

For each of the following variables, determine whether the variable is categorical or numerical. If the variable is numerical, determine whether the variable is discrete or continuous.

  1. Amount of money spent on clothing in the past month
  2. Favorite department store
  3. Most likely time period during which shopping for clothing takes place (weekday, weeknight, or weekend)
  4. Number of pairs of shoes owned

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Which of the following are examples of a variable?A. Gender of a high school graduateB. Number of major credit cards a person hasC. Type of automobile transmissionD. All of the above
Which statement(s) are accurate in their description of frequency and two-way tables? Select all that apply.   a Relative frequency must be expressed as a percent. b The ratio that describes how many times a specific event occurs divided by the total number of events is called the data ratio. c Frequency is the amount of times that a specific event has occurred. d A two-way table is a way to describe frequencies for two variables. The rows and columns in the table must display the same categories.
State whether the data described below are discrete or​ continuous, and explain why.   The tire pressures (in pounds per square inch) of tires on different cars. Choose the correct answer below.     A. The data are discrete because the data can only take on specific values.   B. The data are discrete because the data can take on any value in an interval.   C. The data are continuous because the data can take on any value in an interval.   D. The data are continuous because the data can only take on specific values.

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