Question 1

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 2

In a histogram,the horizontal bar denotes the _____,and the vertical bar denotes the ______.

Accepted Answer

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

Question 3

Because frequency graphs can be misleading depending on how the abscissa and ordinate are formatted,behavioral scientists have adopted a _____.

Accepted Answer

A) "two-thirds high" rule 
B) "ordinate only" rule 
C) "formatted ordinate" rule 
D) "one-third high" rule 
A) "two-thirds high" rule 
B) "ordinate only" rule 
C) "formatted ordinate" rule 
D) "one-third high" rule

Question 4

A stem and leaf plot is useful because it combines features of both a _____ and a(n)_____.

Accepted Answer

A) grouped frequency distribution;ungrouped frequency distribution 
B) parameter;statistic 
C) line plot;pie chart 
D) frequency distribution;histogram 
A) grouped frequency distribution;ungrouped frequency distribution 
B) parameter;statistic 
C) line plot;pie chart 
D) frequency distribution;histogram

Question 5

Many frequency distributions use intervals to group data.For example,the in class exam scores ranged from 90-60 and the professor wants to have at least 6 groupings.What should be the interval?

Accepted Answer

A) 6 
B) 5 
C) 7 
D) None of these 
A) 6 
B) 5 
C) 7 
D) None of these

Question 6

Given a distribution of scores,the probability of randomly selecting a given score from that distribution equals the _____ of that score.

Accepted Answer

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

Question 7

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 8

Outliers are always due to clerical errors.

Accepted Answer

A) True 
 B)False

Question 9

Below is a frequency distribution of the number of days absent from school in a group of 25 fifth-grade students.  
What is the cumulative relative frequency for 7 days absent?

Accepted Answer

A) 0 
B) .87 
C) .96 
D) 24.0 
A) 0 
B) .87 
C) .96 
D) 24.0

Question 10

Guidelines for grouping scores suggest you use ____ groups.

Accepted Answer

A) the fewest number of 
B) between 0 and 5 
C) between 5 and 15 
D) over 20 
A) the fewest number of 
B) between 0 and 5 
C) between 5 and 15 
D) over 20

Question 11

The x-axis is reserved for the _____variable and the y-axis is where the _____ variable is found.

Accepted Answer

A) independent;dependent 
B) dependent;independent 
C) quantitative;qualitative 
D) None of the above 
A) independent;dependent 
B) dependent;independent 
C) quantitative;qualitative 
D) None of the above

Question 12

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

Accepted Answer

A) True 
 B)False

Question 13

The horizontal dimension of a frequency histogram is called a(n)_____.

Accepted Answer

A) abscissa 
B) Y axis 
C) ordinate 
D) frequency line 
A) abscissa 
B) Y axis 
C) ordinate 
D) frequency line

Question 14

In a frequency histogram the frequency is usually 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 15

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

Question 16

Suppose you were given 102 scores which ranged from 0 to 45 and you were asked to create a grouped frequency distribution using 15 intervals.What would be the most appropriate starting value?

Accepted Answer

A) 0 
B) 15 
C) 3 
D) 7 
A) 0 
B) 15 
C) 3 
D) 7

Question 17

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 18

Cumulative frequencies and cumulative relative frequencies are conceptualized with
respect to the lower real limit of a score.

Accepted Answer

A) True 
 B)False

Question 19

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 20

Below is a frequency distribution of the number of days absent from school in a group of 25 fifth-grade students.  
What percentage of students were absent for 4 days?

Accepted Answer

A) 4.0 
B) 20.0 
C) 52.0 
D) 68.0 
A) 4.0 
B) 20.0 
C) 52.0 
D) 68.0

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

In a histogram,the horizontal bar denotes the _,and the vertical bar denotes the __.

Because frequency graphs can be misleading depending on how the abscissa and ordinate are formatted,behavioral scientists have adopted a _____.

A stem and leaf plot is useful because it combines features of both a _ and a(n)_.

Many frequency distributions use intervals to group data.For example,the in class exam scores ranged from 90-60 and the professor wants to have at least 6 groupings.What should be the interval?

Given a distribution of scores,the probability of randomly selecting a given score from that distribution equals the _____ of that score.

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

Outliers are always due to clerical errors.

Below is a frequency distribution of the number of days absent from school in a group of 25 fifth-grade students. What is the cumulative relative frequency for 7 days absent?

Guidelines for grouping scores suggest you use ____ groups.

The x-axis is reserved for the _variable and the y-axis is where the _ variable is found.

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

The horizontal dimension of a frequency histogram is called a(n)_____.

In a frequency histogram the frequency is usually labeled on the_____.

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

Suppose you were given 102 scores which ranged from 0 to 45 and you were asked to create a grouped frequency distribution using 15 intervals.What would be the most appropriate starting value?

The axis labeled "a" is called the_____.

Cumulative frequencies and cumulative relative frequencies are conceptualized with respect to the lower real limit of a score.

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

Below is a frequency distribution of the number of days absent from school in a group of 25 fifth-grade students. What percentage of students were absent for 4 days?

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

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

In a histogram,the horizontal bar denotes the _____,and the vertical bar denotes the ______.

Because frequency graphs can be misleading depending on how the abscissa and ordinate are formatted,behavioral scientists have adopted a _____.

A stem and leaf plot is useful because it combines features of both a _____ and a(n)_____.

Many frequency distributions use intervals to group data.For example,the in class exam scores ranged from 90-60 and the professor wants to have at least 6 groupings.What should be the interval?

Given a distribution of scores,the probability of randomly selecting a given score from that distribution equals the _____ of that score.

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

Outliers are always due to clerical errors.

Below is a frequency distribution of the number of days absent from school in a group of 25 fifth-grade students. What is the cumulative relative frequency for 7 days absent?

Guidelines for grouping scores suggest you use ____ groups.

The x-axis is reserved for the _____variable and the y-axis is where the _____ variable is found.

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

The horizontal dimension of a frequency histogram is called a(n)_____.

In a frequency histogram the frequency is usually labeled on the_____.

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

Suppose you were given 102 scores which ranged from 0 to 45 and you were asked to create a grouped frequency distribution using 15 intervals.What would be the most appropriate starting value?

The axis labeled "a" is called the_____.

Cumulative frequencies and cumulative relative frequencies are conceptualized with respect to the lower real limit of a score.

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

Below is a frequency distribution of the number of days absent from school in a group of 25 fifth-grade students. What percentage of students were absent for 4 days?

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 histogram,the horizontal bar denotes the _,and the vertical bar denotes the __.

A stem and leaf plot is useful because it combines features of both a _ and a(n)_.

The x-axis is reserved for the _variable and the y-axis is where the _ variable is found.