Question 1

The median _____ the sum of the _____ deviations.

Accepted Answer

A) minimizes;signed 
B) minimizes;unsigned 
C) maximizes;signed 
D) maximizes;unsigned 
A) minimizes;signed 
B) minimizes;unsigned 
C) maximizes;signed 
D) maximizes;unsigned

Question 2

The sum of signed deviations about the mean will always equal _____.

Accepted Answer

A) 10 
B) -10 
C) the sum of squares 
D) 0 
A) 10 
B) -10 
C) the sum of squares 
D) 0

Question 3

If we were to randomly select one score from a set of scores,the value of that score
would most likely be equal to the mode as opposed to any other value.

Accepted Answer

A) True 
 B)False

Question 4

The class exam one in your statistics course indicates the Mean was 75 the Median was 78 and the Mode 79.50.This indicates a _____distribution.

Accepted Answer

A) normal 
B) negatively skewed 
C) positively skewed 
D) None of these 
A) normal 
B) negatively skewed 
C) positively skewed 
D) None of these

Question 5

If the variance of a distribution is 100 the SD is____________________.

Accepted Answer

The answer of If the variance of a distribution is...

Question 6

The interquartile range is sometimes preferred over the range because it

Accepted Answer

A) does not involve the median. 
B) takes the most extreme scores into account. 
C) is not based on the most extreme scores. 
D) does not take into account all of the scores in a distribution. 
A) does not involve the median. 
B) takes the most extreme scores into account. 
C) is not based on the most extreme scores. 
D) does not take into account all of the scores in a distribution.

Question 7

The major problem with the mode as a measure of central tendency is that there can be
only one modal score.

Accepted Answer

A) True 
 B)False

Question 8

When referring to qualitative variables,maximum variability occurs when

Accepted Answer

A) the standard deviation is a large number. 
B) the number of individuals is evenly divided among the possible categories. 
C) all of the individuals fall into a single category. 
D) none of these 
A) the standard deviation is a large number. 
B) the number of individuals is evenly divided among the possible categories. 
C) all of the individuals fall into a single category. 
D) none of these

Question 9

What is the standard deviation?

Accepted Answer

The standard deviation is the

Question 10

The _____ is the difference between the highest and lowest scores after the top 25% of the scores and the bottom 25% of the scores have been eliminated from the data.

Accepted Answer

A) range 
B) interquartile range 
C) intermediate range 
D) intertertial range 
A) range 
B) interquartile range 
C) intermediate range 
D) intertertial range

Question 11

The major problem with the mode as a measure of central tendency is that:

Accepted Answer

A) there can be only one modal score 
B) there can be more than one modal score 
C) the mode is insensitive to variability 
D) the mode is insensitive to kurtosis 
A) there can be only one modal score 
B) there can be more than one modal score 
C) the mode is insensitive to variability 
D) the mode is insensitive to kurtosis

Question 12

Eight psychology students took a well-known I.Q.test and achieved the following scores: 96,98,108,110,115,120,121,142.The median score for these students is _____.

Accepted Answer

A) 96 
B) 112.5 
C) 113.5 
D) 115 
A) 96 
B) 112.5 
C) 113.5 
D) 115

Question 13

Given the data set 8,8,8,7,5,6,2,2,what is the range?

Accepted Answer

A) 8 
B) 2 
C) 5.75 
D) 6 
A) 8 
B) 2 
C) 5.75 
D) 6

Question 14

It has been reported the mean driving speed in California is 70 mph and the variance is 9.What is the SD?

Accepted Answer

A) 9 
B) 3 
C) 8.5 
D) None of these 
A) 9 
B) 3 
C) 8.5 
D) None of these

Question 15

The median is used when there are extreme scores for example income levels or house prices.

Accepted Answer

A) True 
 B)False

Question 16

The symbol for true population is_____.

Accepted Answer

A) µ 
B)    
C) á 
D) None of these 
A) µ 
B)    
C) á 
D) None of these

Question 17

The concepts of mean,median,and mode are applicable to continuous and discrete variables.

Accepted Answer

A) True 
 B)False

Question 18

One problem with the sum of squares as a measure of variability is that its size depends on _____,as well as the variability among scores.

Accepted Answer

A) the total N 
B) extreme scores 
C) the mode 
D) the standard deviation 
A) the total N 
B) extreme scores 
C) the mode 
D) the standard deviation

Question 19

The more extreme a score is relative to the other scores in the distribution,the less it will change the value of the mean if it is deleted from the analysis.

Accepted Answer

A) True 
 B)False

Question 20

John waited an average of 5 minutes at a local Starbucks for his coffee with a SD of 2.00.On campus he waits 4 minutes for coffee with a SD of 3.00.What coffee vendor has more variability in its distribution of coffee?

Accepted Answer

A) The local Starbucks 
B) The campus coffee house 
C) They are equal 
D) None of these 
A) The local Starbucks 
B) The campus coffee house 
C) They are equal 
D) None of these

The median _ the sum of the _ deviations.

The sum of signed deviations about the mean will always equal _____.

If we were to randomly select one score from a set of scores,the value of that score would most likely be equal to the mode as opposed to any other value.

The class exam one in your statistics course indicates the Mean was 75 the Median was 78 and the Mode 79.50.This indicates a _____distribution.

If the variance of a distribution is 100 the SD is____________________.

The interquartile range is sometimes preferred over the range because it

The major problem with the mode as a measure of central tendency is that there can be only one modal score.

When referring to qualitative variables,maximum variability occurs when

What is the standard deviation?

The _____ is the difference between the highest and lowest scores after the top 25% of the scores and the bottom 25% of the scores have been eliminated from the data.

The major problem with the mode as a measure of central tendency is that:

Eight psychology students took a well-known I.Q.test and achieved the following scores: 96,98,108,110,115,120,121,142.The median score for these students is _____.

Given the data set 8,8,8,7,5,6,2,2,what is the range?

It has been reported the mean driving speed in California is 70 mph and the variance is 9.What is the SD?

The median is used when there are extreme scores for example income levels or house prices.

The symbol for true population is_____.

The concepts of mean,median,and mode are applicable to continuous and discrete variables.

One problem with the sum of squares as a measure of variability is that its size depends on _____,as well as the variability among scores.

The more extreme a score is relative to the other scores in the distribution,the less it will change the value of the mean if it is deleted from the analysis.

John waited an average of 5 minutes at a local Starbucks for his coffee with a SD of 2.00.On campus he waits 4 minutes for coffee with a SD of 3.00.What coffee vendor has more variability in its distribution of coffee?

Introduction and Mathematical Preliminaries

Frequency and Probability Distributions

Percentiles,percentile Ranks,standard Scores,and the Normal Distribution

Pearson Correlation and Regression: Descriptive Aspects

Probability

Estimation and Sampling Distributions

Hypothesis Testing: Inferences About a Single Mean

Principles of Research Design and Statistical Preliminaries for Analyzing Bivariate Relationships

Independent Groups T-Test

Correlated Groups T-Test

One-Way Repeated Measures Analysis of Variance

Pearson Correlation and Regression: Inferential Aspects

Chi-Square Test

Nonparametric Statistics

Two-Way Between-Subjects Analysis of Variance

Overview and Extension: Statistical Tests for More Complex Designs

Filters

Exam 3: Measures of Central Tendency and Variability

The median _____ the sum of the _____ deviations.

The sum of signed deviations about the mean will always equal _____.

If we were to randomly select one score from a set of scores,the value of that score would most likely be equal to the mode as opposed to any other value.

The class exam one in your statistics course indicates the Mean was 75 the Median was 78 and the Mode 79.50.This indicates a _____distribution.

If the variance of a distribution is 100 the SD is____________________.

The interquartile range is sometimes preferred over the range because it

The major problem with the mode as a measure of central tendency is that there can be only one modal score.

When referring to qualitative variables,maximum variability occurs when

What is the standard deviation?

The _____ is the difference between the highest and lowest scores after the top 25% of the scores and the bottom 25% of the scores have been eliminated from the data.

The major problem with the mode as a measure of central tendency is that:

Eight psychology students took a well-known I.Q.test and achieved the following scores: 96,98,108,110,115,120,121,142.The median score for these students is _____.

Given the data set 8,8,8,7,5,6,2,2,what is the range?

It has been reported the mean driving speed in California is 70 mph and the variance is 9.What is the SD?

The median is used when there are extreme scores for example income levels or house prices.

The symbol for true population is_____.

The concepts of mean,median,and mode are applicable to continuous and discrete variables.

One problem with the sum of squares as a measure of variability is that its size depends on _____,as well as the variability among scores.

The more extreme a score is relative to the other scores in the distribution,the less it will change the value of the mean if it is deleted from the analysis.

John waited an average of 5 minutes at a local Starbucks for his coffee with a SD of 2.00.On campus he waits 4 minutes for coffee with a SD of 3.00.What coffee vendor has more variability in its distribution of coffee?

Introduction and Mathematical Preliminaries

Frequency and Probability Distributions

Percentiles,percentile Ranks,standard Scores,and the Normal Distribution

Pearson Correlation and Regression: Descriptive Aspects

Probability

Estimation and Sampling Distributions

Hypothesis Testing: Inferences About a Single Mean

Principles of Research Design and Statistical Preliminaries for Analyzing Bivariate Relationships

Independent Groups T-Test

Correlated Groups T-Test

One-Way Repeated Measures Analysis of Variance

Pearson Correlation and Regression: Inferential Aspects

Chi-Square Test

Nonparametric Statistics

Two-Way Between-Subjects Analysis of Variance

Overview and Extension: Statistical Tests for More Complex Designs

Filters

The median _ the sum of the _ deviations.