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# Types of Variables in Statistics

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1. Consider the various variables in this Baseball 2005 data: Number of wins, team salary, season attendance, whether the team played its home games on a grass field or an artificial surface and the number of hits and runs.

(a) Which of these variables are quantitative and which are qualitative?
(b) Determine the levels of measurement for each of the variables.

2. Use the data set: AISE cia global demographics data set 13e.xls at http://highered.mcgraw-hill.com/sites/0073030228/student_view0/index.html

(a) Refer to the CIA data set and tell which report (demographic and economic) say which variables are quantitative and which are qualitative?
(b) Determine the level of measurement for each of the variables.

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#### Solution Preview

1. Consider the various variables in this Baseball 2005 data: Number of wins, team salary, season attendance, whether the team played its home games on a grass field or an artificial surface and the number of hits and runs.

(a) Which of these variables are quantitative and which are qualitative?

Quantitative variables are those that are described numerically. Qualitative variables cannot be described that way.

Quantitative: number of wins, salary, attendance, number of hits, runs
Qualitative: surface type

(b) Determine the levels of measurement for each of the variables.

There are 4 levels of ...

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