Question 1

Outliers are always due to clerical errors.

Accepted Answer

A) True 
 B)False

Question 2

In a grouped frequency distribution,the interval size refers to

Accepted Answer

A) the total number of values used in the frequency table 
B) the lowest score in the frequency table 
C) how many scores will be included in each group 
D) the range of values that will characterize each group 
A) the total number of values used in the frequency table 
B) the lowest score in the frequency table 
C) how many scores will be included in each group 
D) the range of values that will characterize each group

Question 3

Frequency histograms are used to present_____.

Accepted Answer

A) quantitative variables 
B) qualitative variables 
C) normally distributed data 
D) Both a & b 
A) quantitative variables 
B) qualitative variables 
C) normally distributed data 
D) Both a & b

Question 4

Probability distributions for continuous variables are conceptualized in terms of ______.

Accepted Answer

A) exact probability calculations 
B) precise calculations 
C) mutually exclusive scores 
D) probability density functions 
A) exact probability calculations 
B) precise calculations 
C) mutually exclusive scores 
D) probability density functions

Question 5

Which of the following types of variables cannot be specified by listing possible values of the variable with corresponding probabilities?

Accepted Answer

A) qualitative 
B) discrete 
C) continuous 
D) all of these 
A) qualitative 
B) discrete 
C) continuous 
D) all of these

Question 6

The relative frequency indicates the ____________________scores appear in the data set.

Accepted Answer

The answer of The relative frequency indicates the ____________________scores appear...

Question 7

When a relative frequency is multiplied by 100,it reflects the _____ of times the score occurred.

Accepted Answer

A) proportion 
B) percentage 
C) absolute frequency 
D) cumulative frequency 
A) proportion 
B) percentage 
C) absolute frequency 
D) cumulative frequency

Question 8

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 9

Frequency histograms and frequency polygons can be constructed for grouped as well as ungrouped scores.

Accepted Answer

A) True 
 B)False

Question 10

When a relative frequency is multiplied by 100,it reflects the proportion of times the score occurred.

Accepted Answer

A) True 
 B)False

Question 11

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

Accepted Answer

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

Question 12

Considered alone,an index of frequency is always meaningful.

Accepted Answer

A) True 
 B)False

Question 13

Given the scores 50,50,60,70,80,90,92,92,what is the cumulative relative frequency for a score of 90?

Accepted Answer

A) .125 
B) .83 
C) .25 
D) .75 
A) .125 
B) .83 
C) .25 
D) .75

Question 14

A frequency distribution for qualitative variables would include all but which of the following?

Accepted Answer

A) frequencies 
B) cumulative frequency 
C) relative frequency 
D) percentages 
A) frequencies 
B) cumulative frequency 
C) relative frequency 
D) percentages

Question 15

If you were studying the effects of gender differences on reaction times.Gender or male or female should be labeled on the_____.

Accepted Answer

A) "a" the y-axis or abscissa 
B) "b" the x-axis or abscissa 
C) "b" the x-axis or ordinate 
D) "a' the y-axis or ordinate 
A) "a" the y-axis or abscissa 
B) "b" the x-axis or abscissa 
C) "b" the x-axis or ordinate 
D) "a' the y-axis or ordinate

Question 16

In a cumulative frequency graph,the cumulative frequency curve will always remain level or increase as it moves from left to right.

Accepted Answer

A) True 
 B)False

Question 17

The advantage of cumulative frequencies is that they allow us to tell at a glance the
number of scores that are equal to or greater than a given score value.

Accepted Answer

A) True 
 B)False

Question 18

What three questions are central in deciding how to form the groups in a grouped frequency distribution?

Accepted Answer

The three questions we must consider are

Question 19

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 20

The major difference between a frequency histogram and a bar graph is that,in a bar graph,the bars are drawn such that they:

Accepted Answer

A) represent quantitative variables 
B) represent continuous variables 
C) do not touch one another 
D) do touch one another 
A) represent quantitative variables 
B) represent continuous variables 
C) do not touch one another 
D) do touch one another

Outliers are always due to clerical errors.

In a grouped frequency distribution,the interval size refers to

Frequency histograms are used to present_____.

Probability distributions for continuous variables are conceptualized in terms of ______.

Which of the following types of variables cannot be specified by listing possible values of the variable with corresponding probabilities?

The relative frequency indicates the ____________________scores appear in the data set.

When a relative frequency is multiplied by 100,it reflects the _____ of times the score occurred.

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.

Frequency histograms and frequency polygons can be constructed for grouped as well as ungrouped scores.

When a relative frequency is multiplied by 100,it reflects the proportion of times the score occurred.

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

Considered alone,an index of frequency is always meaningful.

Given the scores 50,50,60,70,80,90,92,92,what is the cumulative relative frequency for a score of 90?

A frequency distribution for qualitative variables would include all but which of the following?

If you were studying the effects of gender differences on reaction times.Gender or male or female should be labeled on the_____.

In a cumulative frequency graph,the cumulative frequency curve will always remain level or increase as it moves from left to right.

The advantage of cumulative frequencies is that they allow us to tell at a glance the number of scores that are equal to or greater than a given score value.

What three questions are central in deciding how to form the groups in a grouped frequency distribution?

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

The major difference between a frequency histogram and a bar graph is that,in a bar graph,the bars are drawn such that they:

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

Outliers are always due to clerical errors.

In a grouped frequency distribution,the interval size refers to

Frequency histograms are used to present_____.

Probability distributions for continuous variables are conceptualized in terms of ______.

Which of the following types of variables cannot be specified by listing possible values of the variable with corresponding probabilities?

The relative frequency indicates the ____________________scores appear in the data set.

When a relative frequency is multiplied by 100,it reflects the _____ of times the score occurred.

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.

Frequency histograms and frequency polygons can be constructed for grouped as well as ungrouped scores.

When a relative frequency is multiplied by 100,it reflects the proportion of times the score occurred.

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

Considered alone,an index of frequency is always meaningful.

Given the scores 50,50,60,70,80,90,92,92,what is the cumulative relative frequency for a score of 90?

A frequency distribution for qualitative variables would include all but which of the following?

If you were studying the effects of gender differences on reaction times.Gender or male or female should be labeled on the_____.

In a cumulative frequency graph,the cumulative frequency curve will always remain level or increase as it moves from left to right.

The advantage of cumulative frequencies is that they allow us to tell at a glance the number of scores that are equal to or greater than a given score value.

What three questions are central in deciding how to form the groups in a grouped frequency distribution?

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

The major difference between a frequency histogram and a bar graph is that,in a bar graph,the bars are drawn such that they:

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