Question 1

When a distribution is skewed to the right

Accepted Answer

A) the median is greater than the mean. 
B) the mean and the median are the same. 
C) the mean is greater than the median. 
D) the mean and the median are equal. 
A) the median is greater than the mean. 
B) the mean and the median are the same. 
C) the mean is greater than the median. 
D) the mean and the median are equal.

Question 2

The mean and the mode for a statistics test will be the same if the distribution is

Accepted Answer

A) skewed. 
B) normal. 
C) bimodal. 
D) multimodal. 
A) skewed. 
B) normal. 
C) bimodal. 
D) multimodal.

Question 3

In a sample of four people,Person A has a score 5 points below the mean,Person B has a score 3 points above the mean,and Person C has a score 2 points above the mean.Which of the following provides the most accurate description of the score for Person D?

Accepted Answer

A) It is equal to 0. 
B) It is equal to the mean. 
C) It is below the mean. 
D) It is above the mean. 
A) It is equal to 0. 
B) It is equal to the mean. 
C) It is below the mean. 
D) It is above the mean.

Question 4

The __________ is,approximately,the average that a score differs from the mean.

Accepted Answer

The answer of The __________ is,approximately,the average that a score...

Question 5

Based on the scores 1,9,3,6,1,2,6,2,2,and 8,a score of 2 is the

Accepted Answer

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

Question 6

Readers of research articles may expect to find the mean reported in

Accepted Answer

A) the text. 
B) a table. 
C) a graph. 
D) any of the above. 
A) the text. 
B) a table. 
C) a graph. 
D) any of the above.

Question 7

The variance is the same as the

Accepted Answer

A) average of the squared deviations. 
B) sum of the squared deviations. 
C) average of the absolute deviations. 
D) sum of the absolute deviations. 
A) average of the squared deviations. 
B) sum of the squared deviations. 
C) average of the absolute deviations. 
D) sum of the absolute deviations.

Question 8

The median is greater than the mean in a distribution that is

Accepted Answer

A) symmetrical. 
B) skewed to the right. 
C) normal. 
D) skewed to the left. 
A) symmetrical. 
B) skewed to the right. 
C) normal. 
D) skewed to the left.

Question 9

Which statement is true for the scores of 1,2,3,4,5,5,7,8,9,and 10?

Accepted Answer

A) The mean is less than the median. 
B) The mean is less than the mode. 
C) The median and mode are both greater than the mean. 
D) The median and mode are the same. 
A) The mean is less than the median. 
B) The mean is less than the mode. 
C) The median and mode are both greater than the mean. 
D) The median and mode are the same.

Question 10

The median of the scores 6,18,4,21,and 22 is __________.

Accepted Answer

The answer of The median of the scores 6,18,4,21,and 22...

Question 11

In a sample of three people,the first person has a score 5 points above the mean,and the second person has a score 3 points above the mean.Which of the following provides the most accurate description of the score for the third person?

Accepted Answer

A) It is below the mean. 
B) It is below the mean by 4 points. 
C) It is below the mean by 8 points. 
D) It cannot be described based on the information provided. 
A) It is below the mean. 
B) It is below the mean by 4 points. 
C) It is below the mean by 8 points. 
D) It cannot be described based on the information provided.

Question 12

The standard deviation of the scores: 2,0,1,8,and 4 is

Accepted Answer

A) 0)67 
B) 2)83 
C) 3 
D) 8 
A) 0)67 
B) 2)83 
C) 3 
D) 8

Question 13

The mean,median,and mode will be the same when the distribution is __________.

Accepted Answer

perfectly

Question 14

The variance of a group of scores is the average of the __________.

Accepted Answer

squared deviations f

Question 15

In the group of scores 2,81,82,82,and 84,the outlier is __________.

Accepted Answer

The answer of In the group of scores 2,81,82,82,and 84,the...

Question 16

The variance of the scores: 0,1,1,and 2 is

Accepted Answer

A) .25 
B) .5 
C) √)5 
D) 1 
A) .25 
B) .5 
C) √)5 
D) 1

Question 17

The middle value in a set of scores arranged from lowest to highest is the

Accepted Answer

A) mean. 
B) mode. 
C) average. 
D) median. 
A) mean. 
B) mode. 
C) average. 
D) median.

Question 18

The correct formula for the mean is

Accepted Answer

A) M = ΣX / N 
B) M = ΣX2 / N 
C) M = (ΣX)2 / N 
D) M = Σ(X−M)2 / N 
A) M = ΣX / N 
B) M = ΣX2 / N 
C) M = (ΣX)2 / N 
D) M = Σ(X−M)2 / N

Question 19

The correct description of the mean is

Accepted Answer

A) the sum of the scores that is most frequent in a distribution. 
B) the middle score if all the scores are ordered from lowest to highest. 
C) the average of the squared deviations from the median. 
D) the sum of the scores divided by the number of scores. 
A) the sum of the scores that is most frequent in a distribution. 
B) the middle score if all the scores are ordered from lowest to highest. 
C) the average of the squared deviations from the median. 
D) the sum of the scores divided by the number of scores.

Question 20

If the variance is 9,then the standard deviation is

Accepted Answer

A) 18 
B) 81 
C) 3 
D) 4.5 
A) 18 
B) 81 
C) 3 
D) 4.5

When a distribution is skewed to the right

The mean and the mode for a statistics test will be the same if the distribution is

In a sample of four people,Person A has a score 5 points below the mean,Person B has a score 3 points above the mean,and Person C has a score 2 points above the mean.Which of the following provides the most accurate description of the score for Person D?

The __________ is,approximately,the average that a score differs from the mean.

Based on the scores 1,9,3,6,1,2,6,2,2,and 8,a score of 2 is the

Readers of research articles may expect to find the mean reported in

The variance is the same as the

The median is greater than the mean in a distribution that is

Which statement is true for the scores of 1,2,3,4,5,5,7,8,9,and 10?

The median of the scores 6,18,4,21,and 22 is __________.

In a sample of three people,the first person has a score 5 points above the mean,and the second person has a score 3 points above the mean.Which of the following provides the most accurate description of the score for the third person?

The standard deviation of the scores: 2,0,1,8,and 4 is

The mean,median,and mode will be the same when the distribution is __________.

The variance of a group of scores is the average of the __________.

In the group of scores 2,81,82,82,and 84,the outlier is __________.

The variance of the scores: 0,1,1,and 2 is

The middle value in a set of scores arranged from lowest to highest is the

The correct formula for the mean is

The correct description of the mean is

If the variance is 9,then the standard deviation is

Displaying the Order in a Group of Numbers

Some Key Ingredients for Inferential Statistics: Z Scores,the Normal Curve, Sample Versus Population, and Probability

Introduction to Hypothesis Testing

Hypothesis Tests With Means of Samples

Making Sense of Statistical Significance:decision Errors, Effect Size, and Statistical Power

Introduction to T Tests: Single Sample and Dependent Means

The T Test for Independent Means

Introduction to the Analysis of Variance

Factorial Analysis of Variance

Correlation

Prediction

Chi-Square Tests

Strategies When Population Distributions Are Not Normal: Data Transformations and Rank-Order Tests

The General Linear Model and Making Sense of Advanced Statistical Procedures in Research Articles

Filters

Exam 2: Central Tendency and Variability

When a distribution is skewed to the right

The mean and the mode for a statistics test will be the same if the distribution is

In a sample of four people,Person A has a score 5 points below the mean,Person B has a score 3 points above the mean,and Person C has a score 2 points above the mean.Which of the following provides the most accurate description of the score for Person D?

The __________ is,approximately,the average that a score differs from the mean.

Based on the scores 1,9,3,6,1,2,6,2,2,and 8,a score of 2 is the

Readers of research articles may expect to find the mean reported in

The variance is the same as the

The median is greater than the mean in a distribution that is

Which statement is true for the scores of 1,2,3,4,5,5,7,8,9,and 10?

The median of the scores 6,18,4,21,and 22 is __________.

In a sample of three people,the first person has a score 5 points above the mean,and the second person has a score 3 points above the mean.Which of the following provides the most accurate description of the score for the third person?

The standard deviation of the scores: 2,0,1,8,and 4 is

The mean,median,and mode will be the same when the distribution is __________.

The variance of a group of scores is the average of the __________.

In the group of scores 2,81,82,82,and 84,the outlier is __________.

The variance of the scores: 0,1,1,and 2 is

The middle value in a set of scores arranged from lowest to highest is the

The correct formula for the mean is

The correct description of the mean is

If the variance is 9,then the standard deviation is

Displaying the Order in a Group of Numbers

Some Key Ingredients for Inferential Statistics: Z Scores,the Normal Curve, Sample Versus Population, and Probability

Introduction to Hypothesis Testing

Hypothesis Tests With Means of Samples

Making Sense of Statistical Significance:decision Errors, Effect Size, and Statistical Power

Introduction to T Tests: Single Sample and Dependent Means

The T Test for Independent Means

Introduction to the Analysis of Variance

Factorial Analysis of Variance

Correlation

Prediction

Chi-Square Tests

Strategies When Population Distributions Are Not Normal: Data Transformations and Rank-Order Tests

The General Linear Model and Making Sense of Advanced Statistical Procedures in Research Articles

Filters