Question 1

What is the most general measure of variability?

Accepted Answer

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

Question 2

What is the s of the following set of scores? 10, 15, 12, 18, 19, 16, 12

Accepted Answer

The standa

Question 3

Which of the following sets of scores has the most variability?

Accepted Answer

A)  7,10,11,15,19 
B)  7,7,8,8,10,11 
C)  7,7,7,7,7,7,7 
D)  6,6,7,7,7,7,7 
A)  7,10,11,15,19 
B)  7,7,8,8,10,11 
C)  7,7,7,7,7,7,7 
D)  6,6,7,7,7,7,7

Question 4

What is the formula for computing both the exclusive and inclusive ranges?

Accepted Answer

Exclusive range: r =

Question 5

If a distribution is "significantly distorted" what is this called?

Accepted Answer

A)  variability 
B)  outliers 
C)  skew 
D)  percentile 
A)  variability 
B)  outliers 
C)  skew 
D)  percentile

Question 6

Which of the following is the correct function for calculating an unbiased estimate of the variance in the population?

Accepted Answer

A)  AVERAGE(A1:A15) 
B)  STDEV(A1+A2+A3)/3 
C)  VAR(A1:A12) 
D)  STDEV(A1:A10) 
A)  AVERAGE(A1:A15) 
B)  STDEV(A1+A2+A3)/3 
C)  VAR(A1:A12) 
D)  STDEV(A1:A10)

Question 7

Which of the following is one way to represent variance?

Accepted Answer

A)  s 
B)  s² 
C)    
D)  s/n 
A)  s 
B)  s² 
C)    
D)  s/n

Question 8

What is the formula for the inclusive range?

Accepted Answer

A)  r - n +1 
B)  h - l + 1 
C)  (h - l)r 
D)  h - l 
A)  r - n +1 
B)  h - l + 1 
C)  (h - l)r 
D)  h - l

Question 9

The three measures of variability commonly used to reflect the spread or dispersion in a group of scores are the standard deviation, the variance, and the what?

Accepted Answer

A)  range 
B)  outliers 
C)  skew 
D)  percentile 
A)  range 
B)  outliers 
C)  skew 
D)  percentile

Question 10

What are the measures of variability discussed in the textbook?

Accepted Answer

Range, sta

What is the most general measure of variability?

What is the s of the following set of scores? 10, 15, 12, 18, 19, 16, 12

Which of the following sets of scores has the most variability?

What is the formula for computing both the exclusive and inclusive ranges?

If a distribution is "significantly distorted" what is this called?

Which of the following is the correct function for calculating an unbiased estimate of the variance in the population?

Which of the following is one way to represent variance?

What is the formula for the inclusive range?

The three measures of variability commonly used to reflect the spread or dispersion in a group of scores are the standard deviation, the variance, and the what?

What are the measures of variability discussed in the textbook?

Statistics or Sadistics? It’s Up to You

Means to an End: Computing and Understanding Averages

A Picture Really Is Worth a Thousand Words

Ice Cream and Crime: Computing Correlation Coefficients

Just the Truth: An Introduction to Understanding Reliability and Validity

Hypotheticals and You: Testing Your Questions

Are Your Curves Normal? Probability and Why It Counts

Significantly Significant: What It Means for You and Me

Only the Lonely

t(ea) for Two (Again): Tests Between the Means of Related Groups

t(ea) for Two (Again): Tests Between the Means of Related Groups

Two Groups Too Many? Try Analysis of Variance

Two Too Many Factors: Factorial Analysis of Variance

Cousins or Just Good Friends? Testing Relationships Using the Correlation Coefficient

Predicting Who’ll Win the Super Bowl: Using Linear Regression

What to Do When You’re Not Normal: Chi-Square and Some Other Nonparametric Tests

Some Other (Important) Statistical Procedures You Should Know About

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Exam 3: Vive La Différence: Understanding Variability

What is the most general measure of variability?

What is the s of the following set of scores? 10, 15, 12, 18, 19, 16, 12

Which of the following sets of scores has the most variability?

What is the formula for computing both the exclusive and inclusive ranges?

If a distribution is "significantly distorted" what is this called?

Which of the following is the correct function for calculating an unbiased estimate of the variance in the population?

Which of the following is one way to represent variance?

What is the formula for the inclusive range?

The three measures of variability commonly used to reflect the spread or dispersion in a group of scores are the standard deviation, the variance, and the what?

What are the measures of variability discussed in the textbook?

Statistics or Sadistics? It’s Up to You

Means to an End: Computing and Understanding Averages

A Picture Really Is Worth a Thousand Words

Ice Cream and Crime: Computing Correlation Coefficients

Just the Truth: An Introduction to Understanding Reliability and Validity

Hypotheticals and You: Testing Your Questions

Are Your Curves Normal? Probability and Why It Counts

Significantly Significant: What It Means for You and Me

Only the Lonely

t(ea) for Two (Again): Tests Between the Means of Related Groups

t(ea) for Two (Again): Tests Between the Means of Related Groups

Two Groups Too Many? Try Analysis of Variance

Two Too Many Factors: Factorial Analysis of Variance

Cousins or Just Good Friends? Testing Relationships Using the Correlation Coefficient

Predicting Who’ll Win the Super Bowl: Using Linear Regression

What to Do When You’re Not Normal: Chi-Square and Some Other Nonparametric Tests

Some Other (Important) Statistical Procedures You Should Know About

Filters