Question 1

If a distribution is positively skewed, the a) ______________ will be in the center, with the b) ______________ to the right and the c) ______________ to the left.

Accepted Answer

a. median

Question 2

In a positively skewed distribution, the mode will be

Accepted Answer

A)  towards the low scores. 
B)  towards the high scores. 
C)  in the middle of the distribution. 
D)  between the median and the mean. 
A)  towards the low scores. 
B)  towards the high scores. 
C)  in the middle of the distribution. 
D)  between the median and the mean.

Question 3

The symbol for the mean of a population is ________.

Accepted Answer

A)  M 
B)  μ 
C)  f 
D)  σ 
A)  M 
B)  μ 
C)  f 
D)  σ

Question 4

In a positively skewed distribution, the median will be

Accepted Answer

A)  toward the right of the mean. 
B)  between the mode and the mean. 
C)  toward the right tail of the distribution. 
D)  toward the left of the mode. 
A)  toward the right of the mean. 
B)  between the mode and the mean. 
C)  toward the right tail of the distribution. 
D)  toward the left of the mode.

Question 5

How would you describe the shape of the distribution for the following set of scores: 10, 20, 20, 30, 30, 30, 40, 40, 40, 40, 40, 50, 50, 50, 50, 50, 60, 60, 60, 60, 60, 70, 70, 70, 70, 80, 80, 80?

Accepted Answer

A)  symmetrical 
B)  positively skewed 
C)  negatively skewed 
D)  rectangular 
A)  symmetrical 
B)  positively skewed 
C)  negatively skewed 
D)  rectangular

Question 6

Changing the value of one of the scores in a data will always affect the

Accepted Answer

A)  mode. 
B)  median. 
C)  mean. 
D)  none of the above. 
A)  mode. 
B)  median. 
C)  mean. 
D)  none of the above.

Question 7

If a set of scores has two modes it will result in a distribution that is

Accepted Answer

A)  symmetrical. 
B)  bimodal. 
C)  positively skewed. 
D)  negatively skewed. 
A)  symmetrical. 
B)  bimodal. 
C)  positively skewed. 
D)  negatively skewed.

Question 8

The mean can be determined for which scale(s) of measurement?

Accepted Answer

A)  nominal or ordinal 
B)  interval or ratio 
C)  nominal or interval 
D)  ordinal or interval 
A)  nominal or ordinal 
B)  interval or ratio 
C)  nominal or interval 
D)  ordinal or interval

Question 9

Which measure of central tendency should a researcher use to describe the most representative gender in a study?

Accepted Answer

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

Question 10

The mean, mode, and median will all be in the same location in a

Accepted Answer

A)  positively skewed distribution. 
B)  negatively skewed distribution. 
C)  normally shaped distribution. 
D)  bimodal distribution. 
A)  positively skewed distribution. 
B)  negatively skewed distribution. 
C)  normally shaped distribution. 
D)  bimodal distribution.

Question 11

Use the counting method to determine the median for the following set of scores: 6, 8, 7, 9, 5, 12, 6, 8

Accepted Answer

Even numbe

Question 12

The preferred measure of central tendency in a normally shaped distribution is

Accepted Answer

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

Question 13

If you know that the mean of a distribution is 85 and that the median is 95, you also know that the distribution is

Accepted Answer

A)  positively skewed. 
B)  negatively skewed. 
C)  symmetrical. 
D)  bimodal. 
A)  positively skewed. 
B)  negatively skewed. 
C)  symmetrical. 
D)  bimodal.

Question 14

The median can be used for any of the scales of measurement, except

Accepted Answer

A)  nominal. 
B)  ordinal. 
C)  interval. 
D)  ratio. 
A)  nominal. 
B)  ordinal. 
C)  interval. 
D)  ratio.

Question 15

When using the formula method for determining the median, which of the following is NOT required?

Accepted Answer

A)  LL 
B)  i 
C)  cfbelow 
D)  ∑X 
A)  LL 
B)  i 
C)  cfbelow 
D)  ∑X

Question 16

The formula method for determining the median is used when working from

Accepted Answer

A)  a grouped frequency distribution. 
B)  a simple frequency distribution. 
C)  a distribution table with a column for P.R. 
D)  a distribution table with a column for Rel. F. 
A)  a grouped frequency distribution. 
B)  a simple frequency distribution. 
C)  a distribution table with a column for P.R. 
D)  a distribution table with a column for Rel. F.

Question 17

How would you describe the shape of the distribution for the following set of scores: 1, 2, 2, 3, 3, 3, 3, 4, 4, 5, 5, 6, 6, 6, 6, 7, 7, 8?

Accepted Answer

A)  symmetrical 
B)  positively skewed 
C)  negatively skewed 
D)  bimodal 
A)  symmetrical 
B)  positively skewed 
C)  negatively skewed 
D)  bimodal

Question 18

Which measure of central tendency is defined as the middle point in a distribution with half of the scores above it and half of the scores below it?

Accepted Answer

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

If a distribution is positively skewed, the a) will be in the center, with the b) to the right and the c) __ to the left.

In a positively skewed distribution, the mode will be

The symbol for the mean of a population is ________.

In a positively skewed distribution, the median will be

How would you describe the shape of the distribution for the following set of scores: 10, 20, 20, 30, 30, 30, 40, 40, 40, 40, 40, 50, 50, 50, 50, 50, 60, 60, 60, 60, 60, 70, 70, 70, 70, 80, 80, 80?

Changing the value of one of the scores in a data will always affect the

If a set of scores has two modes it will result in a distribution that is

The mean can be determined for which scale(s) of measurement?

Which measure of central tendency should a researcher use to describe the most representative gender in a study?

The mean, mode, and median will all be in the same location in a

Use the counting method to determine the median for the following set of scores: 6, 8, 7, 9, 5, 12, 6, 8

The preferred measure of central tendency in a normally shaped distribution is

If you know that the mean of a distribution is 85 and that the median is 95, you also know that the distribution is

The median can be used for any of the scales of measurement, except

When using the formula method for determining the median, which of the following is NOT required?

The formula method for determining the median is used when working from

How would you describe the shape of the distribution for the following set of scores: 1, 2, 2, 3, 3, 3, 3, 4, 4, 5, 5, 6, 6, 6, 6, 7, 7, 8?

Which measure of central tendency is defined as the middle point in a distribution with half of the scores above it and half of the scores below it?

Organizing Data Using Tables and Graphs

Measures of Variability

Z-Scores and Other Standard Scores

Probability and the Normal Distribution

Sampling Distribution of Means

Hypothesis Testing

One-Sample T-Test

Two-Sample T-Test: Independent Samples Design

Two-Sample T-Test: Related Samples Design

Confidence Interval Versus Point Estimation

One-Way Analysis of Variance

Factorial Analysis of Variance

Correlation and Regression

Chi-Square

Introduction to Statistics

Nonparametric Statistics for Ordinal Data

Filters

Exam 3: Measures of Central Tendency

If a distribution is positively skewed, the a) ______________ will be in the center, with the b) ______________ to the right and the c) ______________ to the left.

In a positively skewed distribution, the mode will be

The symbol for the mean of a population is ________.

In a positively skewed distribution, the median will be

How would you describe the shape of the distribution for the following set of scores: 10, 20, 20, 30, 30, 30, 40, 40, 40, 40, 40, 50, 50, 50, 50, 50, 60, 60, 60, 60, 60, 70, 70, 70, 70, 80, 80, 80?

Changing the value of one of the scores in a data will always affect the

If a set of scores has two modes it will result in a distribution that is

The mean can be determined for which scale(s) of measurement?

Which measure of central tendency should a researcher use to describe the most representative gender in a study?

The mean, mode, and median will all be in the same location in a

Use the counting method to determine the median for the following set of scores: 6, 8, 7, 9, 5, 12, 6, 8

The preferred measure of central tendency in a normally shaped distribution is

If you know that the mean of a distribution is 85 and that the median is 95, you also know that the distribution is

The median can be used for any of the scales of measurement, except

When using the formula method for determining the median, which of the following is NOT required?

The formula method for determining the median is used when working from

How would you describe the shape of the distribution for the following set of scores: 1, 2, 2, 3, 3, 3, 3, 4, 4, 5, 5, 6, 6, 6, 6, 7, 7, 8?

Which measure of central tendency is defined as the middle point in a distribution with half of the scores above it and half of the scores below it?

Organizing Data Using Tables and Graphs

Measures of Variability

Z-Scores and Other Standard Scores

Probability and the Normal Distribution

Sampling Distribution of Means

Hypothesis Testing

One-Sample T-Test

Two-Sample T-Test: Independent Samples Design

Two-Sample T-Test: Related Samples Design

Confidence Interval Versus Point Estimation

One-Way Analysis of Variance

Factorial Analysis of Variance

Correlation and Regression

Chi-Square

Introduction to Statistics

Nonparametric Statistics for Ordinal Data

Filters

If a distribution is positively skewed, the a) will be in the center, with the b) to the right and the c) __ to the left.