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Statistics for the Behavioral Sciences Second Edition Chapter 4: Central Tendency and Variability...

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Statistics for the Behavioral Sciences Second Edition Chapter 4: Central Tendency and Variability iClicker Questions Copyright © 2012 by Worth Publishers Susan A. Nolan and Thomas E. Heinzen
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Page 1: Statistics for the Behavioral Sciences Second Edition Chapter 4: Central Tendency and Variability iClicker Questions Copyright © 2012 by Worth Publishers.

Statistics for the Behavioral SciencesSecond Edition

Chapter 4:

Central Tendency and Variability

iClicker Questions

Copyright © 2012 by Worth Publishers

Susan A. Nolan and Thomas E. Heinzen

Page 2: Statistics for the Behavioral Sciences Second Edition Chapter 4: Central Tendency and Variability iClicker Questions Copyright © 2012 by Worth Publishers.

Chapter 4

1. Which of the following is an example of a measure of central tendency?

a) the mean

b) the median

c) the mode

d) all of the above

Page 3: Statistics for the Behavioral Sciences Second Edition Chapter 4: Central Tendency and Variability iClicker Questions Copyright © 2012 by Worth Publishers.

Chapter 4 (Answer)

1. Which of the following is an example of a measure of central tendency?

a) the mean

b) the median

c) the mode

d) all of the above

Page 4: Statistics for the Behavioral Sciences Second Edition Chapter 4: Central Tendency and Variability iClicker Questions Copyright © 2012 by Worth Publishers.

Chapter 4

2. Maria wants to calculate the class average for her Statistics class. She adds together her scores for Exam 1, Exam 2, and Exam 3. She then divides this total by 3. Maria has just calculated her:

a) variance.

b) mode.

c) median.

d) mean.

Page 5: Statistics for the Behavioral Sciences Second Edition Chapter 4: Central Tendency and Variability iClicker Questions Copyright © 2012 by Worth Publishers.

Chapter 4 (Answer)

2. Maria wants to calculate the class average for her Statistics class. She adds together her scores for Exam 1, Exam 2, and Exam 3. She then divides this total by 3. Maria has just calculated her:

a) variance.

b) mode.

c) median.

d) mean.

Page 6: Statistics for the Behavioral Sciences Second Edition Chapter 4: Central Tendency and Variability iClicker Questions Copyright © 2012 by Worth Publishers.

Chapter 4 3. A parameter is a number based on:

a) the most frequently occurring score in a distribution of scores.

b) the variance of scores.

c) a sample taken from a population.

d) the whole population.

Page 7: Statistics for the Behavioral Sciences Second Edition Chapter 4: Central Tendency and Variability iClicker Questions Copyright © 2012 by Worth Publishers.

Chapter 4 (Answer)

3. A parameter is a number based on:

a) the most frequently occurring score in a distribution of scores.

b) the variance of scores.

c) a sample taken from a population.

d) the whole population.

Page 8: Statistics for the Behavioral Sciences Second Edition Chapter 4: Central Tendency and Variability iClicker Questions Copyright © 2012 by Worth Publishers.

Chapter 4

4. What is the median for the following distribution of scores: 2, 2, 8, 10, 27?

a) 2

b) 8

c) 27

d) 9.8

Page 9: Statistics for the Behavioral Sciences Second Edition Chapter 4: Central Tendency and Variability iClicker Questions Copyright © 2012 by Worth Publishers.

Chapter 4 (Answer)

4. What is the median for the following distribution of scores: 2, 2, 8, 10, 27?

a) 2

b) 8

c) 27

d) 9.8

Page 10: Statistics for the Behavioral Sciences Second Edition Chapter 4: Central Tendency and Variability iClicker Questions Copyright © 2012 by Worth Publishers.

Chapter 4

5. Which of the following terms best describes the following distribution of scores: 2, 3, 7, 7, 7, 7, 8, 10, 15?

a) unimodal

b) bimodal

c) multimodal

d) all of these

Page 11: Statistics for the Behavioral Sciences Second Edition Chapter 4: Central Tendency and Variability iClicker Questions Copyright © 2012 by Worth Publishers.

Chapter 4 (Answer)

5. Which of the following terms best describes the following distribution of scores: 2, 3, 7, 7, 7, 7, 8, 10, 15?

a) unimodal

b) bimodal

c) multimodal

d) all of these

Page 12: Statistics for the Behavioral Sciences Second Edition Chapter 4: Central Tendency and Variability iClicker Questions Copyright © 2012 by Worth Publishers.

Chapter 4

6. Consider the following distribution of scores: 2, 2, 8, 10, 37. Within the context of this distribution, the number 37 would represent:

a) an outlier.

b) the range.

c) the mode.

d) the variance.

Page 13: Statistics for the Behavioral Sciences Second Edition Chapter 4: Central Tendency and Variability iClicker Questions Copyright © 2012 by Worth Publishers.

Chapter 4 (Answer)

6. Consider the following distribution of scores: 2, 2, 8, 10, 37. Within the context of this distribution, the number 37 would represent:

a) an outlier.

b) the range.

c) the mode.

d) the variance.

Page 14: Statistics for the Behavioral Sciences Second Edition Chapter 4: Central Tendency and Variability iClicker Questions Copyright © 2012 by Worth Publishers.

Chapter 4

7. Which type of measure of central tendency is most appropriate to use when one particular score dominates a distribution and the data are at the nominal level?

a) the mean

b) the median

c) the mode

d) none of these

Page 15: Statistics for the Behavioral Sciences Second Edition Chapter 4: Central Tendency and Variability iClicker Questions Copyright © 2012 by Worth Publishers.

Chapter 4 (Answer)

7. Which type of measure of central tendency is most appropriate to use when one particular score dominates a distribution and the data are at the nominal level?

a) the mean

b) the median

c) the mode

d) none of these

Page 16: Statistics for the Behavioral Sciences Second Edition Chapter 4: Central Tendency and Variability iClicker Questions Copyright © 2012 by Worth Publishers.

Chapter 4

8. Which of the following distribution of scores has a range of 10?

a) 2, 6, 7, 9 10

b) 9, 9, 10, 11, 11

c) 3, 10, 10, 10, 10, 14

d) 102, 103, 104, 105, 106, 112

Page 17: Statistics for the Behavioral Sciences Second Edition Chapter 4: Central Tendency and Variability iClicker Questions Copyright © 2012 by Worth Publishers.

Chapter 4 (Answer)

8. Which of the following distribution of scores has a range of 10?

a) 2, 6, 7, 9 10

b) 9, 9, 10, 11, 11

c) 3, 10, 10, 10, 10, 14

d) 102, 103, 104, 105, 106, 112

Page 18: Statistics for the Behavioral Sciences Second Edition Chapter 4: Central Tendency and Variability iClicker Questions Copyright © 2012 by Worth Publishers.

Chapter 4

9. The average of the squared deviations from the mean is referred to as:

a) the standard deviation.

b) the median.

c) the range.

d) the variance.

Page 19: Statistics for the Behavioral Sciences Second Edition Chapter 4: Central Tendency and Variability iClicker Questions Copyright © 2012 by Worth Publishers.

Chapter 4 (Answer)

9. The average of the squared deviations from the mean is referred to as:

a) the standard deviation.

b) the median.

c) the range.

d) the variance.

Page 20: Statistics for the Behavioral Sciences Second Edition Chapter 4: Central Tendency and Variability iClicker Questions Copyright © 2012 by Worth Publishers.

Chapter 4

10. To calculate the standard deviation you can:

a) square the variance.

b) take the square root of the variance.

c) square the mean.

d) add up all the scores in the distribution of scores.

Page 21: Statistics for the Behavioral Sciences Second Edition Chapter 4: Central Tendency and Variability iClicker Questions Copyright © 2012 by Worth Publishers.

Chapter 4 (Answer)

10. To calculate the standard deviation you can:

a) square the variance.

b) take the square root of the variance.

c) square the mean.

d) add up all the scores in the distribution of scores.

Page 22: Statistics for the Behavioral Sciences Second Edition Chapter 4: Central Tendency and Variability iClicker Questions Copyright © 2012 by Worth Publishers.

Chapter 4

11.The interquartile range may be a better choice than the range if:

a) you have a large set of numbers to work with.

b) your median is larger than your mode.

c) you have an outlier score in your data.

d) your standard deviation is less than zero.

Page 23: Statistics for the Behavioral Sciences Second Edition Chapter 4: Central Tendency and Variability iClicker Questions Copyright © 2012 by Worth Publishers.

Chapter 4 (Answer)

11.The interquartile range may be a better choice than the range if:

a) you have a large set of numbers to work with.

b) your median is larger than your mode.

c) you have an outlier score in your data.

d) your standard deviation is less than zero.


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