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Exam 3: Measures of Central Tendency

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Question 61

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______ is the mode fast food in this frequency distribution table; it was chosen by ______ of the sample.

A) Hamburger; 6
B) Hot dog; 33.3%
C) Sandwich; 20.0%
D) Pizza; 1

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Question 62

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For the set of data, the median is ______ and the mean is ______. 3, 7, 6, 2, 8, 2

A) 4.50; 28.00
B) 4.67; 4.50
C) 4.00; 4.50
D) 4.50; 4.67

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Question 63

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For this set of data, $\Sigma$ X² is equal to ______. 408, 415, 510, 650, 925

A judge has been hired to resolve the salary negotiations between a company and its labor union. The great majority of union members have relatively low salaries; however, a small percentage of union members have very high salaries. In order to influence the judge in their favor, the company management would want to use the ______ to summarize workers' current wages, while the union would use the ______.

Using the rounding rules presented in this book, the number ______ is correctly rounded to ______.

For this set of data, $\Sigma$ X² is equal to ______. 104, 116, 95, 121, 87

For this set of data, the median is ______ and the mean is ______. 20.42, 23.90, 25.81, 28.42, 24.66, 21.13, 19.49, 20.91

When analyzing a variable measured on an interval scale, which measure of central tendency would be most appropriate to report (assuming the distribution is normal) ?

What is the median for the set of data? 23, 24, 24, 26, 29, 30, 35

All of the following are a weakness of the median EXCEPT which one?

For the set of data, the median is ______ and the mean is ______. 16, 17, 16, 19, 20, 15

The numeric characteristic of a population is called a statistic.

Using the rounding rules presented in this book, the number ______ is correctly rounded to ______.

For the set of data, the median is ______ and the mean is ______. 15, 10, 18, 9, 12, 16, 14, 17

One relative strength of the ______ as a measure of central tendency is that it ______.

One relative weakness of the ______ as a measure of central tendency is that it ______.

For this set of data, ( $\Sigma$ X) ² is equal to ______.

For the set of data, the median is ______ and the mean is ______. 11.43, 13.56, 9.61, 18.02, 10.84, 16.13

What is the mode for the set of colors? green, yellow, red, yellow, green, blue, yellow, red, green, green, blue, green, red