Question 1

The total area under a density curve represents 1.00.

Accepted Answer

A) True 
 B)False

Question 2

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 3

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 was the percentage of employee's that were sick for 7 days?

Accepted Answer

A) 37.5% 
B) 12.50% 
C) 25.00% 
D) 90% 
A) 37.5% 
B) 12.50% 
C) 25.00% 
D) 90%

Question 4

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 5

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 6

The total area under the _____ represents _____.

Accepted Answer

A) density area;1.0 
B) density curve;10.0 
C) density curve;1.0 
D) density area;100% 
A) density area;1.0 
B) density curve;10.0 
C) density curve;1.0 
D) density area;100%

Question 7

Typically,interval sizes of 2,3,or multiples of 5 are used in grouped frequency distributions.

Accepted Answer

A) True 
 B)False

Question 8

Quantitative variables can be graphed using _____.

Accepted Answer

A) frequency polygons 
B) bar graphs 
C) frequency histograms 
D) both frequency polygons and frequency histograms 
A) frequency polygons 
B) bar graphs 
C) frequency histograms 
D) both frequency polygons and frequency histograms

Question 9

A relative frequency is the number of scores of a given value divided by the total number of scores.

Accepted Answer

A) True 
 B)False

Question 10

Which is not true of a normal distribution?

Accepted Answer

A) It is bell-shaped. 
B) It is theoretical in nature. 
C) It is symmetrical. 
D) It is empirically deriveD. 
A) It is bell-shaped. 
B) It is theoretical in nature. 
C) It is symmetrical. 
D) It is empirically deriveD.

Question 11

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 12

Cumulative percentages indicate the percentage of cases that have scores equal to or less than a given score value.

Accepted Answer

A) True 
 B)False

Question 13

A useful tool for summarizing a large set of data is a _____.

Accepted Answer

A) qualitative distribution 
B) frequency distribution 
C) descriptive distribution 
D) all of these 
A) qualitative distribution 
B) frequency distribution 
C) descriptive distribution 
D) all of these

Question 14

The axis labeled "b" 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 15

A table that lists scores on a variable and shows the number of occurrences of each score is called a _____ distribution.

Accepted Answer

A) probability 
B) frequency 
C) normal 
D) density 
A) probability 
B) frequency 
C) normal 
D) density

Question 16

A frequency distribution is a table that lists _____ on a variable and shows the number of individuals who obtained each _____.

Accepted Answer

A) scores;value 
B) classes;frequencies 
C) frequencies;class 
D) scores;frequency 
A) scores;value 
B) classes;frequencies 
C) frequencies;class 
D) scores;frequency

Question 17

A probability represents the proportion of times that some score was previously observed.

Accepted Answer

A) True 
 B)False

Question 18

What is a relative frequency?

Accepted Answer

A relative frequency is the nu

Question 19

What is the difference between a relative frequency and a probability?

Accepted Answer

Whereas a relative frequency i

Question 20

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

The total area under a density curve represents 1.00.

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.

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 was the percentage of employee's that were sick for 7 days?

In a grouped frequency distribution,the interval size refers to

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?

The total area under the _ represents _.

Typically,interval sizes of 2,3,or multiples of 5 are used in grouped frequency distributions.

Quantitative variables can be graphed using _____.

A relative frequency is the number of scores of a given value divided by the total number of scores.

Which is not true of a normal distribution?

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

Cumulative percentages indicate the percentage of cases that have scores equal to or less than a given score value.

A useful tool for summarizing a large set of data is a _____.

The axis labeled "b" is called the______.

A table that lists scores on a variable and shows the number of occurrences of each score is called a _____ distribution.

A frequency distribution is a table that lists _ on a variable and shows the number of individuals who obtained each _.

A probability represents the proportion of times that some score was previously observed.

What is a relative frequency?

What is the difference between a relative frequency and a probability?

Frequency histograms are used to present_____.

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

The total area under a density curve represents 1.00.

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.

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 was the percentage of employee's that were sick for 7 days?

In a grouped frequency distribution,the interval size refers to

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?

The total area under the _____ represents _____.

Typically,interval sizes of 2,3,or multiples of 5 are used in grouped frequency distributions.

Quantitative variables can be graphed using _____.

A relative frequency is the number of scores of a given value divided by the total number of scores.

Which is not true of a normal distribution?

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

Cumulative percentages indicate the percentage of cases that have scores equal to or less than a given score value.

A useful tool for summarizing a large set of data is a _____.

The axis labeled "b" is called the______.

A table that lists scores on a variable and shows the number of occurrences of each score is called a _____ distribution.

A frequency distribution is a table that lists _____ on a variable and shows the number of individuals who obtained each _____.

A probability represents the proportion of times that some score was previously observed.

What is a relative frequency?

What is the difference between a relative frequency and a probability?

Frequency histograms are used to present_____.

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

The total area under the _ represents _.

A frequency distribution is a table that lists _ on a variable and shows the number of individuals who obtained each _.