Question 1

In a frequency polygon,the vertical bar denotes the _____,and the horizontal bar denotes the _____.

Accepted Answer

A) frequencies;variable values 
B) variable values;frequencies 
C) abscissa;ordinate 
D) frequencies;ordinate 
A) frequencies;variable values 
B) variable values;frequencies 
C) abscissa;ordinate 
D) frequencies;ordinate A

Question 2

To produce a probability distribution of some variable,that variable must have the properties of being _____ and ______.

Accepted Answer

A) continuous;inclusive 
B) mutually inclusive;discrete 
C) exhaustive;inclusive 
D) mutually exclusive;exhaustive 
A) continuous;inclusive 
B) mutually inclusive;discrete 
C) exhaustive;inclusive 
D) mutually exclusive;exhaustive D

Question 3

What is a cumulative frequency?

Accepted Answer

Cumulative frequencies are obtained by a process of successive addition of the entries in the frequency column.For any given score,the cumulative frequency is the frequency associated with that score plus the sum of all frequencies below that score.The advantage of cumulative frequencies is that they allow us to tell at a glance the number of scores that are equal to or less than a given score value.

Question 4

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 5

The independent variable will be on the ____________________of a graph.
or

Accepted Answer

The answer of The independent variable will be on the...

Question 6

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 7

Distinguish between empirical distributions and theoretical distributions.

Accepted Answer

Empirical distributions are based on act

Question 8

Cumulative frequency allows us to determine the number of scores ____________________a given score.

Accepted Answer

The answer of Cumulative frequency allows us to determine the...

Question 9

When the potential values for a qualitative or discrete variable are _____ and _____,then the probabilities associated with the individual score values will represent a probability distribution with respect to that variable.

Accepted Answer

A) mutually exclusive;exhaustive 
B) mutually exclusive;nonexhaustive 
C) nominal;cumulative 
D) normally distributed;exhaustive 
A) mutually exclusive;exhaustive 
B) mutually exclusive;nonexhaustive 
C) nominal;cumulative 
D) normally distributed;exhaustive

Question 10

One should always report at least 10 groups in a grouped frequency distribution.

Accepted Answer

A) True 
 B)False

Question 11

_____distributions are based on actual measurements collected in the real world,while _____ distributions are constructed by making assumptions and representing these assumptions mathematically.

Accepted Answer

A) Normal;empirical 
B) Empirical;theoretical 
C) Theoretical;empirical 
D) Normal;theoretical 
A) Normal;empirical 
B) Empirical;theoretical 
C) Theoretical;empirical 
D) Normal;theoretical

Question 12

Stem and leaf plots are useful as long as the number of scores is not too large and when the number of different values on the base are moderate in number.

Accepted Answer

A) True 
 B)False

Question 13

A Interval size that would be appropriate for test scores ranging from high 90 to lowest 50 would be ____________________.
or

Accepted Answer

The answer of A Interval size that would be appropriate...

Question 14

How do we determine the number of groups to report in a grouped frequency distribution?

Accepted Answer

In deciding how many groups to report,a

Question 15

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 16

If the lowest score in a distribution is 47 and the highest score is 99 and you used six groups,what is the appropriate interval size?

Accepted Answer

A) 5 
B) 2 
C) 10 
D) 10.4 
A) 5 
B) 2 
C) 10 
D) 10.4

Question 17

The number of times that a score occurs divided by the total number of scores is termed a(n)_____.

Accepted Answer

A) relative frequency 
B) cumulative frequency 
C) probability density 
D) average distribution 
A) relative frequency 
B) cumulative frequency 
C) probability density 
D) average distribution

Question 18

_____ are derived by making assumptions and representing those assumptions mathematically.

Accepted Answer

A) Empirical distributions 
B) Theoretical distributions 
C) Assumptive distributions 
D) Realistic distributions 
A) Empirical distributions 
B) Theoretical distributions 
C) Assumptive distributions 
D) Realistic distributions

Question 19

Refer to the following distribution  
What is the cumulative frequency associated with a score of 6?

Accepted Answer

A) 2 
B) 5 
C) 7 
D) 13 
A) 2 
B) 5 
C) 7 
D) 13

Question 20

A probability density function ______.

Accepted Answer

A) can be graphically represented as a bar graph 
B) can be used only to represent variables that are measured on a ratio curve 
C) is a smooth curve including all possible values of a continuous variable 
D) is always bell-shaped 
A) can be graphically represented as a bar graph 
B) can be used only to represent variables that are measured on a ratio curve 
C) is a smooth curve including all possible values of a continuous variable 
D) is always bell-shaped

In a frequency polygon,the vertical bar denotes the _,and the horizontal bar denotes the _.

To produce a probability distribution of some variable,that variable must have the properties of being _ and __.

What is a cumulative frequency?

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

The independent variable will be on the ____________________of a graph. or

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

Distinguish between empirical distributions and theoretical distributions.

Cumulative frequency allows us to determine the number of scores ____________________a given score.

When the potential values for a qualitative or discrete variable are _ and _,then the probabilities associated with the individual score values will represent a probability distribution with respect to that variable.

One should always report at least 10 groups in a grouped frequency distribution.

_distributions are based on actual measurements collected in the real world,while _ distributions are constructed by making assumptions and representing these assumptions mathematically.

Stem and leaf plots are useful as long as the number of scores is not too large and when the number of different values on the base are moderate in number.

A Interval size that would be appropriate for test scores ranging from high 90 to lowest 50 would be ____________________. or

How do we determine the number of groups to report in a grouped frequency distribution?

Cumulative frequency is the_____.

If the lowest score in a distribution is 47 and the highest score is 99 and you used six groups,what is the appropriate interval size?

The number of times that a score occurs divided by the total number of scores is termed a(n)_____.

_____ are derived by making assumptions and representing those assumptions mathematically.

Refer to the following distribution What is the cumulative frequency associated with a score of 6?

A probability density function ______.

Introduction and Mathematical Preliminaries

Percentiles percentile Ranks standard Scores and the Normal Distribution

Pearson Correlation and Regression: Descriptive Aspects

Measures of Central Tendency and Variability

Estimation and Sampling Distributions

Hypothesis Testing: Inferences About a Single Mean

Probability

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

In a frequency polygon,the vertical bar denotes the _____,and the horizontal bar denotes the _____.

To produce a probability distribution of some variable,that variable must have the properties of being _____ and ______.

What is a cumulative frequency?

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

The independent variable will be on the ____________________of a graph. or

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

Distinguish between empirical distributions and theoretical distributions.

Cumulative frequency allows us to determine the number of scores ____________________a given score.

When the potential values for a qualitative or discrete variable are _____ and _____,then the probabilities associated with the individual score values will represent a probability distribution with respect to that variable.

One should always report at least 10 groups in a grouped frequency distribution.

_____distributions are based on actual measurements collected in the real world,while _____ distributions are constructed by making assumptions and representing these assumptions mathematically.

Stem and leaf plots are useful as long as the number of scores is not too large and when the number of different values on the base are moderate in number.

A Interval size that would be appropriate for test scores ranging from high 90 to lowest 50 would be ____________________. or

How do we determine the number of groups to report in a grouped frequency distribution?

Cumulative frequency is the_____.

If the lowest score in a distribution is 47 and the highest score is 99 and you used six groups,what is the appropriate interval size?

The number of times that a score occurs divided by the total number of scores is termed a(n)_____.

_____ are derived by making assumptions and representing those assumptions mathematically.

Refer to the following distribution What is the cumulative frequency associated with a score of 6?

A probability density function ______.

Introduction and Mathematical Preliminaries

Percentiles percentile Ranks standard Scores and the Normal Distribution

Pearson Correlation and Regression: Descriptive Aspects

Measures of Central Tendency and Variability

Estimation and Sampling Distributions

Hypothesis Testing: Inferences About a Single Mean

Probability

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

In a frequency polygon,the vertical bar denotes the _,and the horizontal bar denotes the _.

To produce a probability distribution of some variable,that variable must have the properties of being _ and __.

When the potential values for a qualitative or discrete variable are _ and _,then the probabilities associated with the individual score values will represent a probability distribution with respect to that variable.

_distributions are based on actual measurements collected in the real world,while _ distributions are constructed by making assumptions and representing these assumptions mathematically.