Question 1

What is the difference between the mean, median, and mode?

Accepted Answer

The mean, median, and mode are measures

Question 2

When comparing the following two distributions, which of the following statements is true? Data Set #1: 10, 15, 20, 25, 30
Data Set #2: 16, 18, 20, 22, 24

Accepted Answer

A)  Data Set #1 has a smaller mean than Data Set #2. 
B)  Data Set #1 has a larger standard deviation than Data Set #2. 
C)  Both data sets have the same range. 
D)  The mean is larger than the median in both data sets. 
A)  Data Set #1 has a smaller mean than Data Set #2. 
B)  Data Set #1 has a larger standard deviation than Data Set #2. 
C)  Both data sets have the same range. 
D)  The mean is larger than the median in both data sets.

Question 3

Which of the following is NOT a measure of the degree of spread or dispersion of scores?

Accepted Answer

A)  standard deviation 
B)  range 
C)  mode 
D)  variance 
A)  standard deviation 
B)  range 
C)  mode 
D)  variance

Question 4

What is another way to describe a mean?

Accepted Answer

A)  deviation 
B)  variability 
C)  average score 
D)  test statistic 
A)  deviation 
B)  variability 
C)  average score 
D)  test statistic

Question 5

In a set of scores with a mean of 100 and a standard deviation of 15, what raw score is represented by a z-score of 2.00?

Accepted Answer

A)  115 
B)  130 
C)  100 
D)  70 
A)  115 
B)  130 
C)  100 
D)  70

Question 6

Why isn't the range the best measure of variability?

Accepted Answer

The range, which is the difference betwe

Question 7

Which measure would be used to describe the average class ranking of algebra students?

Accepted Answer

A)  mean 
B)  mode 
C)  median 
D)  standard deviation 
A)  mean 
B)  mode 
C)  median 
D)  standard deviation

Question 8

Which of the following measures is NOT a measure of central tendency?

Accepted Answer

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

Question 9

Which measure of central tendency provides the most information?

Accepted Answer

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

Question 10

When you have ordinal data such as class rank), which is the best measure of central tendency to use?

Accepted Answer

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

Question 11

When you have interval or ratio data such as age in years) what is typically the best measure of central tendency to use?

Accepted Answer

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

Question 12

Which measure of variability describes the average deviation of each score from the mean?

Accepted Answer

A)  range 
B)  standard deviation 
C)  mode 
D)  mean 
A)  range 
B)  standard deviation 
C)  mode 
D)  mean

Question 13

Why is the sum of the deviation about the mean always 0?

Accepted Answer

The sum of the deviations about the mean

Question 14

Which measure would be used to describe how far a test score is from the average test score?

Accepted Answer

A)  mean 
B)  mode 
C)  median 
D)  standard deviation 
A)  mean 
B)  mode 
C)  median 
D)  standard deviation

Question 15

What is the median of 2, 2, 2, 4, 6, 6, 6, and 6?

Accepted Answer

A)  5 
B)  6 
C)  4.25 
D)  34 
A)  5 
B)  6 
C)  4.25 
D)  34

Question 16

What are some characteristics of a normal curve?

Accepted Answer

A normal curve, also known as a Gaussian

Question 17

Which measure of variability is the most direct way to measure how dispersed a set of scores is?

Accepted Answer

A)  the mean 
B)  standard deviation 
C)  range 
D)  variance 
A)  the mean 
B)  standard deviation 
C)  range 
D)  variance

Question 18

What measure would be used to compute the average gender of subjects?

Accepted Answer

A)  mean 
B)  mode 
C)  median 
D)  standard deviation 
A)  mean 
B)  mode 
C)  median 
D)  standard deviation

Question 19

What is the mean of 5, 10, 15, and 20?

Accepted Answer

A)  3 
B)  12.5 
C)  25 
D)  50 
A)  3 
B)  12.5 
C)  25 
D)  50

Question 20

What is a measure of central tendency?

Accepted Answer

A measure of central tendency is a stati

What is the difference between the mean, median, and mode?

When comparing the following two distributions, which of the following statements is true? Data Set #1: 10, 15, 20, 25, 30 Data Set #2: 16, 18, 20, 22, 24

Which of the following is NOT a measure of the degree of spread or dispersion of scores?

What is another way to describe a mean?

In a set of scores with a mean of 100 and a standard deviation of 15, what raw score is represented by a z-score of 2.00?

Why isn't the range the best measure of variability?

Which measure would be used to describe the average class ranking of algebra students?

Which of the following measures is NOT a measure of central tendency?

Which measure of central tendency provides the most information?

When you have ordinal data such as class rank), which is the best measure of central tendency to use?

When you have interval or ratio data such as age in years) what is typically the best measure of central tendency to use?

Which measure of variability describes the average deviation of each score from the mean?

Why is the sum of the deviation about the mean always 0?

Which measure would be used to describe how far a test score is from the average test score?

What is the median of 2, 2, 2, 4, 6, 6, 6, and 6?

What are some characteristics of a normal curve?

Which measure of variability is the most direct way to measure how dispersed a set of scores is?

What measure would be used to compute the average gender of subjects?

What is the mean of 5, 10, 15, and 20?

What is a measure of central tendency?

The Role and Importance of Research

The Research Process: Coming to Terms

A: Selecting a Problem and Reviewing the Research

B: Ethics: the Basic Principles

Sampling and Generalizability

Measurement, Reliability, and Validity

Methods of Measuring Behavior

Introducing Inferential Statistics

Nonexperimental Research: Descriptive and Correlational Methods

Nonexperimental Research: Qualitative Methods

Pre- and True Experimental Research Methods

Quasi-Experimental Research: a Close Cousin to Experimental Research

Writing a Research Proposal

Writing a Research Manuscript

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Exam 7: Data Collection and Descriptive Statistics

What is the difference between the mean, median, and mode?

When comparing the following two distributions, which of the following statements is true? Data Set #1: 10, 15, 20, 25, 30 Data Set #2: 16, 18, 20, 22, 24

Which of the following is NOT a measure of the degree of spread or dispersion of scores?

What is another way to describe a mean?

In a set of scores with a mean of 100 and a standard deviation of 15, what raw score is represented by a z-score of 2.00?

Why isn't the range the best measure of variability?

Which measure would be used to describe the average class ranking of algebra students?

Which of the following measures is NOT a measure of central tendency?

Which measure of central tendency provides the most information?

When you have ordinal data such as class rank), which is the best measure of central tendency to use?

When you have interval or ratio data such as age in years) what is typically the best measure of central tendency to use?

Which measure of variability describes the average deviation of each score from the mean?

Why is the sum of the deviation about the mean always 0?

Which measure would be used to describe how far a test score is from the average test score?

What is the median of 2, 2, 2, 4, 6, 6, 6, and 6?

What are some characteristics of a normal curve?

Which measure of variability is the most direct way to measure how dispersed a set of scores is?

What measure would be used to compute the average gender of subjects?

What is the mean of 5, 10, 15, and 20?

What is a measure of central tendency?

The Role and Importance of Research

The Research Process: Coming to Terms

A: Selecting a Problem and Reviewing the Research

B: Ethics: the Basic Principles

Sampling and Generalizability

Measurement, Reliability, and Validity

Methods of Measuring Behavior

Introducing Inferential Statistics

Nonexperimental Research: Descriptive and Correlational Methods

Nonexperimental Research: Qualitative Methods

Pre- and True Experimental Research Methods

Quasi-Experimental Research: a Close Cousin to Experimental Research

Writing a Research Proposal

Writing a Research Manuscript

Filters