Question 1

On a graph,the _____ refers to the Y-axis,while the _____ refers to the X-axis.

Accepted Answer

A) ordinate,abscissa 
B) ordinal,abscissa 
C) abscissa,ordinate 
D) abscissa,ordinal 
A) ordinate,abscissa 
B) ordinal,abscissa 
C) abscissa,ordinate 
D) abscissa,ordinal

Question 2

Statisticians conceptualize a probability distribution of a discrete variable in terms of a probability density function.

Accepted Answer

A) True 
 B)False

Question 3

In frequency distributions for qualitative variables,the concepts of cumulative frequencies,cumulative relative frequencies,and cumulative percentages:

Accepted Answer

A) are still applicable 
B) are mathematically different 
C) are functionally equivalent 
D) are not applicable 
A) are still applicable 
B) are mathematically different 
C) are functionally equivalent 
D) are not applicable

Question 4

What is the normal distribution?

Accepted Answer

The normal distribution is one very impo

Question 5

What is an outlier and why do they occur?

Accepted Answer

An outlier is a case or set of cases tha

Question 6

A major difference between bar graphs and histograms is that _____.

Accepted Answer

A) bar graphs exhibit only discrete data 
B) histograms use qualitative data 
C) bar graphs separate the bars 
D) histograms separate the bars 
A) bar graphs exhibit only discrete data 
B) histograms use qualitative data 
C) bar graphs separate the bars 
D) histograms separate the bars

Question 7

Cumulative frequency is the_____.

Accepted Answer

A) Proportion of scores that occur in the distributions set divided by N 
B) The proportion of scores that occur at a particular score or lower than this score 
C) The proportion of all scores in the distribution 
D) None of these 
A) Proportion of scores that occur in the distributions set divided by N 
B) The proportion of scores that occur at a particular score or lower than this score 
C) The proportion of all scores in the distribution 
D) None of these

Question 8

As a rule of thumb,the use of _____ groups in a grouped frequency distribution tends to strike the appropriate balance between imprecision and incomprehensibility.

Accepted Answer

A) 5 to 15 
B) 10 
C) 10 to 20 
D) 5 to 10 
A) 5 to 15 
B) 10 
C) 10 to 20 
D) 5 to 10

Question 9

A graph can be misleading,depending how the abscissa and ordinate are formatted.

Accepted Answer

A) True 
 B)False

Question 10

At what point do we begin the lowest interval in a grouped frequency distribution?

Accepted Answer

The conventional starting poin

Question 11

The axis labeled "a" is called the_____.

Accepted Answer

A) y-axis 
B) x-axis 
C) ordinate 
D) both b & c 
E) both a & c 
A) y-axis 
B) x-axis 
C) ordinate 
D) both b & c 
E) both a & c

Question 12

Because frequency graphs can be misleading depending on how the abscissa and ordinate are formatted,behavioral scientists rarely use them.

Accepted Answer

A) True 
 B)False

Question 13

The Human resource department wants to determine the frequency of sick days for 8 employees' that make up their department.Below is their data  
What is the cumulative relative frequency for being sick for 5 days?

Accepted Answer

A) .375 
B) 1.00 
C) .125 
D) .250 
E) None of these 
A) .375 
B) 1.00 
C) .125 
D) .250 
E) None of these

Question 14

If a variable is continuous,the vertical boundaries of the bar for a given score will represent the absolute frequency of that score.

Accepted Answer

A) True 
 B)False

Question 15

Based on the Method of Presentation section of Chapter 2,the reason that a published manuscript does not typically report all types of frequency information is because

Accepted Answer

A) journal readers are expected to construct complete information from what is given 
B) it is assumed that just relative frequencies or percentages provide the most concise information about any given research area 
C) journal space is costly and it is not economically or practically feasible 
D) researchers do not have enough time to provide complete information 
A) journal readers are expected to construct complete information from what is given 
B) it is assumed that just relative frequencies or percentages provide the most concise information about any given research area 
C) journal space is costly and it is not economically or practically feasible 
D) researchers do not have enough time to provide complete information

Question 16

How do we determine the size of the interval to use in a grouped frequency distribution?

Accepted Answer

Typically,interval sizes of 2,3,or multi

Question 17

A relative frequency is:

Accepted Answer

A) the proportion of times that a score occurred 
B) the number of scores of a given value divided by the total number of scores 
C) usually a more informative statistic than an absolute frequency 
D) all of these 
A) the proportion of times that a score occurred 
B) the number of scores of a given value divided by the total number of scores 
C) usually a more informative statistic than an absolute frequency 
D) all of these

Question 18

All distributions in the family of normal distributions are symmetrical and are characterized by a "bell shape."

Accepted Answer

A) True 
 B)False

Question 19

If the scores of a class at midterm are 70,70,70,80,80,90,92,and 92,what is the relative frequency of the score 80?

Accepted Answer

A) 2 
B) .25 
C) .125 
D) 5/8 
A) 2 
B) .25 
C) .125 
D) 5/8

Question 20

In grouped frequency distributions,we typically use interval sizes of _____.

Accepted Answer

A) 2 or 3 
B) 5 or 10 
C) 2,3,or multiples of 5 
D) none of these 
A) 2 or 3 
B) 5 or 10 
C) 2,3,or multiples of 5 
D) none of these

On a graph,the _ refers to the Y-axis,while the _ refers to the X-axis.

Statisticians conceptualize a probability distribution of a discrete variable in terms of a probability density function.

In frequency distributions for qualitative variables,the concepts of cumulative frequencies,cumulative relative frequencies,and cumulative percentages:

What is the normal distribution?

What is an outlier and why do they occur?

A major difference between bar graphs and histograms is that _____.

Cumulative frequency is the_____.

As a rule of thumb,the use of _____ groups in a grouped frequency distribution tends to strike the appropriate balance between imprecision and incomprehensibility.

A graph can be misleading,depending how the abscissa and ordinate are formatted.

At what point do we begin the lowest interval in a grouped frequency distribution?

The axis labeled "a" is called the_____.

Because frequency graphs can be misleading depending on how the abscissa and ordinate are formatted,behavioral scientists rarely use them.

The Human resource department wants to determine the frequency of sick days for 8 employees' that make up their department.Below is their data What is the cumulative relative frequency for being sick for 5 days?

If a variable is continuous,the vertical boundaries of the bar for a given score will represent the absolute frequency of that score.

Based on the Method of Presentation section of Chapter 2,the reason that a published manuscript does not typically report all types of frequency information is because

How do we determine the size of the interval to use in a grouped frequency distribution?

A relative frequency is:

All distributions in the family of normal distributions are symmetrical and are characterized by a "bell shape."

If the scores of a class at midterm are 70,70,70,80,80,90,92,and 92,what is the relative frequency of the score 80?

In grouped frequency distributions,we typically use interval sizes of _____.

Introduction and Mathematical Preliminaries

Measures of Central Tendency and Variability

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 2: Frequency and Probability Distributions

On a graph,the _____ refers to the Y-axis,while the _____ refers to the X-axis.

Statisticians conceptualize a probability distribution of a discrete variable in terms of a probability density function.

In frequency distributions for qualitative variables,the concepts of cumulative frequencies,cumulative relative frequencies,and cumulative percentages:

What is the normal distribution?

What is an outlier and why do they occur?

A major difference between bar graphs and histograms is that _____.

Cumulative frequency is the_____.

As a rule of thumb,the use of _____ groups in a grouped frequency distribution tends to strike the appropriate balance between imprecision and incomprehensibility.

A graph can be misleading,depending how the abscissa and ordinate are formatted.

At what point do we begin the lowest interval in a grouped frequency distribution?

The axis labeled "a" is called the_____.

Because frequency graphs can be misleading depending on how the abscissa and ordinate are formatted,behavioral scientists rarely use them.

The Human resource department wants to determine the frequency of sick days for 8 employees' that make up their department.Below is their data What is the cumulative relative frequency for being sick for 5 days?

If a variable is continuous,the vertical boundaries of the bar for a given score will represent the absolute frequency of that score.

Based on the Method of Presentation section of Chapter 2,the reason that a published manuscript does not typically report all types of frequency information is because

How do we determine the size of the interval to use in a grouped frequency distribution?

A relative frequency is:

All distributions in the family of normal distributions are symmetrical and are characterized by a "bell shape."

If the scores of a class at midterm are 70,70,70,80,80,90,92,and 92,what is the relative frequency of the score 80?

In grouped frequency distributions,we typically use interval sizes of _____.

Introduction and Mathematical Preliminaries

Measures of Central Tendency and Variability

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

On a graph,the _ refers to the Y-axis,while the _ refers to the X-axis.