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


A) 4
B) 12
C) 243
D) 26

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


A) 67.294; 67.29
B) 51.629; 51.62
C) 42.668; 42.66
D) 70.981; 70.99

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


A) median; is affected by outliers
B) mode; is affected by outliers
C) mean; isn't based on all of the scores in the distribution
D) median; doesn't describe bimodal distributions

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


A) 581.60
B) 2908.00
C) 1876914.00
D) 8456464.00

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


A) 233
B) 1165
C) 71853.50
D) 558859

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


A) 798.111; 798.12
B) 864.891; 864.90
C) 982.356; 982.36
D) 997.448; 997.44

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


A) 16.50; 103.00
B) 17.17; 16.50
C) 17.50; 16.50
D) 16.50; 17.17

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


A) blue
B) red
C) yellow
D) green

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


A) 14.50; 111.00
B) 13.88; 14.50
C) 10.50; 14.50
D) 14.50; 13.88

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


A) mean; is based on all of the scores in a distribution
B) mode; describes skewed distributions
C) median; describes bimodal distributions
D) mean; is not affected by outliers

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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


A) 22.52; 184.74
B) 23.09; 22.52
C) 26.54; 22.52
D) 22.52; 23.09

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


A) 12.50; 79.59
B) 13.27; 12.50
C) 13.82; 12.50
D) 12.50; 13.27

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The numeric characteristic of a population is called a statistic.

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For this set of data, ( Σ\Sigma X) 2 is equal to ______.  For this set of data, ( \Sigma X) <sup>2</sup> is equal to ______.   A)  19 B)  63 C)  81 D)  361


A) 19
B) 63
C) 81
D) 361

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


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

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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 ______.


A) mean; median
B) mean; mode
C) mode; mean
D) median; mode

Correct Answer

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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) ?


A) mode
B) median
C) mean
D) statistic

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


A) It is affected by outliers.
B) It cannot be used to test a hypothesis.
C) It may not describe bimodal distributions.
D) It is not based on all the scores in a data set.

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