Question 1

If you fold a normal curve,each half would fit perfectly on top of the other,a characteristic known as ______.

Accepted Answer

A) asymptotic 
B) symmetry 
C) probability 
D) variability 
A) asymptotic 
B) symmetry 
C) probability 
D) variability

Question 2

The ______ is the most commonly used standard score.

Accepted Answer

A) z score 
B) t score 
C) f score 
D) p score 
A) z score 
B) t score 
C) f score 
D) p score

Question 3

The percentage of scores that fall within 1 standard deviation of the mean is ______.

Accepted Answer

A) 99.5% 
B) 68% 
C) 50% 
D) 95% 
A) 99.5% 
B) 68% 
C) 50% 
D) 95%

Question 4

If a distribution has a mean of 100 and a standard deviation of 15,what value would be +2 standard deviations from the mean?

Accepted Answer

A) 70 
B) 85 
C) 115 
D) 130 
A) 70 
B) 85 
C) 115 
D) 130

Question 5

A z score that falls above the mean is ______.

Accepted Answer

A) negative 
B) positive 
C) equal to 0 
D) equal to 1 
A) negative 
B) positive 
C) equal to 0 
D) equal to 1

Question 6

A score that is 2.5 standard deviations below the mean would have a z score of ______.

Accepted Answer

A) -2.5 
B) 2.5 
C) 0 
D) 25 
A) -2.5 
B) 2.5 
C) 0 
D) 25

Question 7

A distribution of scores in which almost the entire class scored very low,but a few students scored fairly high would be ______.

Accepted Answer

A) negatively skewed 
B) positively skewed 
C) unskewed 
D) normally distributed 
A) negatively skewed 
B) positively skewed 
C) unskewed 
D) normally distributed

Question 8

If you want to calculate a z score for a test where your raw score was 24,what other information must you know?

Accepted Answer

A) shape of the distribution 
B) mean,median,and mode 
C) mean and standard deviation 
D) standard deviation only 
A) shape of the distribution 
B) mean,median,and mode 
C) mean and standard deviation 
D) standard deviation only

Question 9

What is the foundation of inferential statistics?

Accepted Answer

A) probability 
B) linear algebra 
C) mathematical proofs 
D) Algebra 
A) probability 
B) linear algebra 
C) mathematical proofs 
D) Algebra

Question 10

The study of probability is the basis for determining the degree of confidence we have in stating that a particular finding or outcome is TRUE.

Accepted Answer

A) True 
 B)False

Question 11

Why is it important that the tails of a normal curve never touch the x-axis?

Accepted Answer

The fact that they do not touch means th

Question 12

Rank the order of the following z scores in terms of distance from the mean: +2,-3,-1,+1,and 0.

Accepted Answer

The following z scores are ran

Question 13

What percentage of scores fall between the following z scores: -1 to +1;-1 to +2;and -1 to +3?

Accepted Answer

The answer of What percentage of scores fall between the...

Question 14

If I flip a coin 10 times,how many possible combinations or outcomes could I have?

Accepted Answer

A) 102 
B) 210 
C) 1010 
D) 22 
A) 102 
B) 210 
C) 1010 
D) 22

Question 15

What percentage of all scores fall above a z score of +1?

Accepted Answer

A) 16% 
B) 34% 
C) 50% 
D) 84% 
A) 16% 
B) 34% 
C) 50% 
D) 84%

Question 16

What is the term associated with the lack of symmetry in a distribution?

Accepted Answer

A) ogive 
B) kurtosis 
C) skewness 
D) variability 
A) ogive 
B) kurtosis 
C) skewness 
D) variability

Question 17

What is the T score for a z score of +3?

Accepted Answer

A) 30 
B) 50 
C) 80 
D) 100 
A) 30 
B) 50 
C) 80 
D) 100

Question 18

What do you need to calculate first before calculating the kurtosis?

Accepted Answer

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

Question 19

What is the basis for the normal curve?

Accepted Answer

A) mean 
B) asymptotic 
C) probability 
D) symmetry 
A) mean 
B) asymptotic 
C) probability 
D) symmetry

Question 20

Which of the following can be used to measure the shape of a distribution?

Accepted Answer

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

If you fold a normal curve,each half would fit perfectly on top of the other,a characteristic known as ______.

The ______ is the most commonly used standard score.

The percentage of scores that fall within 1 standard deviation of the mean is ______.

If a distribution has a mean of 100 and a standard deviation of 15,what value would be +2 standard deviations from the mean?

A z score that falls above the mean is ______.

A score that is 2.5 standard deviations below the mean would have a z score of ______.

A distribution of scores in which almost the entire class scored very low,but a few students scored fairly high would be ______.

If you want to calculate a z score for a test where your raw score was 24,what other information must you know?

What is the foundation of inferential statistics?

The study of probability is the basis for determining the degree of confidence we have in stating that a particular finding or outcome is TRUE.

Why is it important that the tails of a normal curve never touch the x-axis?

Rank the order of the following z scores in terms of distance from the mean: +2,-3,-1,+1,and 0.

What percentage of scores fall between the following z scores: -1 to +1;-1 to +2;and -1 to +3?

If I flip a coin 10 times,how many possible combinations or outcomes could I have?

What percentage of all scores fall above a z score of +1?

What is the term associated with the lack of symmetry in a distribution?

What is the T score for a z score of +3?

What do you need to calculate first before calculating the kurtosis?

What is the basis for the normal curve?

Which of the following can be used to measure the shape of a distribution?

Statistics or Sadistics Its up to You

Means to an End: Computing and Understanding Averages

Understanding Variability: Vive La Différence

A Picture Really Is Worth a Thousand Words

Computing Correlation Coefficients: Ice Cream and Crime

Understanding Reliability and Validity: Just the Truth

Hypotheticals and You: Testing Your Questions

Significantly Significant: What It Means for You and Me

Only the Lonely: the One Sample Z-Test

Teafor Two: Tests Between the Means of Different Groups

Teafor Two Again: Tests Between the Means of Related Groups

Two Groups Too Many Try Analysis of Variance

Two Too Many Factors: Factorial Analysis of Variancea Brief Introduction

Testing Relationships Using the Correlation Coefficients: Cousins or Just Good Friends

Using Linear Regression: Predicting Wholl Win the Super Bowl

Chi-Square and Some Other Nonparametric Tests: What to Do When Youre Not Normal

Some Other Importantstatistical Procedures You Should Know About

An Introduction to Data Mining

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Exam 8: Probability and Why It Counts: Fun With a Bell-Shaped Curve

If you fold a normal curve,each half would fit perfectly on top of the other,a characteristic known as ______.

The ______ is the most commonly used standard score.

The percentage of scores that fall within 1 standard deviation of the mean is ______.

If a distribution has a mean of 100 and a standard deviation of 15,what value would be +2 standard deviations from the mean?

A z score that falls above the mean is ______.

A score that is 2.5 standard deviations below the mean would have a z score of ______.

A distribution of scores in which almost the entire class scored very low,but a few students scored fairly high would be ______.

If you want to calculate a z score for a test where your raw score was 24,what other information must you know?

What is the foundation of inferential statistics?

The study of probability is the basis for determining the degree of confidence we have in stating that a particular finding or outcome is TRUE.

Why is it important that the tails of a normal curve never touch the x-axis?

Rank the order of the following z scores in terms of distance from the mean: +2,-3,-1,+1,and 0.

What percentage of scores fall between the following z scores: -1 to +1;-1 to +2;and -1 to +3?

If I flip a coin 10 times,how many possible combinations or outcomes could I have?

What percentage of all scores fall above a z score of +1?

What is the term associated with the lack of symmetry in a distribution?

What is the T score for a z score of +3?

What do you need to calculate first before calculating the kurtosis?

What is the basis for the normal curve?

Which of the following can be used to measure the shape of a distribution?

Statistics or Sadistics Its up to You

Means to an End: Computing and Understanding Averages

Understanding Variability: Vive La Différence

A Picture Really Is Worth a Thousand Words

Computing Correlation Coefficients: Ice Cream and Crime

Understanding Reliability and Validity: Just the Truth

Hypotheticals and You: Testing Your Questions

Significantly Significant: What It Means for You and Me

Only the Lonely: the One Sample Z-Test

Teafor Two: Tests Between the Means of Different Groups

Teafor Two Again: Tests Between the Means of Related Groups

Two Groups Too Many Try Analysis of Variance

Two Too Many Factors: Factorial Analysis of Variancea Brief Introduction

Testing Relationships Using the Correlation Coefficients: Cousins or Just Good Friends

Using Linear Regression: Predicting Wholl Win the Super Bowl

Chi-Square and Some Other Nonparametric Tests: What to Do When Youre Not Normal

Some Other Importantstatistical Procedures You Should Know About

An Introduction to Data Mining

Filters