Question 1

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 D

Question 2

A frequency polygon is typically used when the variable of interest is _____.

Accepted Answer

A) discrete 
B) nominal 
C) qualitative 
D) continuous 
A) discrete 
B) nominal 
C) qualitative 
D) continuous D

Question 3

If measuring reaction times of subjects on a task,which is a continuous variable,on the x-axis should have_____.

Accepted Answer

A) real limits of the number 
B) the number only 
C) probability mutualism 
D) Both a & c 
A) real limits of the number 
B) the number only 
C) probability mutualism 
D) Both a & c A

Question 4

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 5

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 6

Empirical distributions taken from a sample of the population may have______ .

Accepted Answer

A) too many subjects 
B) outliers 
C) quantitative data only 
D) None of the above 
A) too many subjects 
B) outliers 
C) quantitative data only 
D) None of the above

Question 7

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 frequency for being sick 7 days?

Accepted Answer

A) 8 
B) 5 
C) 1.00 
D) 3.00 
A) 8 
B) 5 
C) 1.00 
D) 3.00

Question 8

Outliers can significantly change the frequency distribution.

Accepted Answer

A) True 
 B)False

Question 9

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

Accepted Answer

Whereas a relative frequency i

Question 10

In frequency histograms,the frequencies associated with score values are labeled along the ______,and the score values are labeled along the ____.

Accepted Answer

A) abscissa;ordinate 
B) bottom;side 
C) ordinate;abscissa 
D) horizontal axis;vertical axis 
A) abscissa;ordinate 
B) bottom;side 
C) ordinate;abscissa 
D) horizontal axis;vertical axis

Question 11

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 12

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 relative frequency for being sick 8 days?

Accepted Answer

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

Question 13

Frequency polygons are the same think as a bar graph.

Accepted Answer

A) True 
 B)False

Question 14

A stem and leaf plot is used to graph probability distributions.

Accepted Answer

A) True 
 B)False

Question 15

Empirical and theoretical distributions refer to actual measurements collected in the real world.

Accepted Answer

A) True 
 B)False

Question 16

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 17

Dr.Jones is studying recall for a list of 25 words.His numbers are as follows 10,7,8,9,10,9,8,12 etc.How should he organize his data so it makes sense?

Accepted Answer

A) Use a frequency distribution 
B) Draw a Frequency histogram 
C) examine the data for outliers 
D) All of these 
A) Use a frequency distribution 
B) Draw a Frequency histogram 
C) examine the data for outliers 
D) All of these

Question 18

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 19

If the relative frequency for the number of times students skip class per a semester is .10 then ____________________ percent miss class.

Accepted Answer

The answer of If the relative frequency for the number...

Question 20

Relative 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

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

A frequency polygon is typically used when the variable of interest is _____.

If measuring reaction times of subjects on a task,which is a continuous variable,on the x-axis should have_____.

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

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?

Empirical distributions taken from a sample of the population may have______ .

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 frequency for being sick 7 days?

Outliers can significantly change the frequency distribution.

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

In frequency histograms,the frequencies associated with score values are labeled along the __,and the score values are labeled along the .

Guidelines for grouping scores suggest you use ____ groups.

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 relative frequency for being sick 8 days?

Frequency polygons are the same think as a bar graph.

A stem and leaf plot is used to graph probability distributions.

Empirical and theoretical distributions refer to actual measurements collected in the real world.

Which is not true of a normal distribution?

Dr.Jones is studying recall for a list of 25 words.His numbers are as follows 10,7,8,9,10,9,8,12 etc.How should he organize his data so it makes sense?

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

If the relative frequency for the number of times students skip class per a semester is .10 then ____________________ percent miss class.

Relative frequency is the_____.

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

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

A frequency polygon is typically used when the variable of interest is _____.

If measuring reaction times of subjects on a task,which is a continuous variable,on the x-axis should have_____.

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

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?

Empirical distributions taken from a sample of the population may have______ .

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 frequency for being sick 7 days?

Outliers can significantly change the frequency distribution.

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

In frequency histograms,the frequencies associated with score values are labeled along the ______,and the score values are labeled along the ____.

Guidelines for grouping scores suggest you use ____ groups.

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 relative frequency for being sick 8 days?

Frequency polygons are the same think as a bar graph.

A stem and leaf plot is used to graph probability distributions.

Empirical and theoretical distributions refer to actual measurements collected in the real world.

Which is not true of a normal distribution?

Dr.Jones is studying recall for a list of 25 words.His numbers are as follows 10,7,8,9,10,9,8,12 etc.How should he organize his data so it makes sense?

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

If the relative frequency for the number of times students skip class per a semester is .10 then ____________________ percent miss class.

Relative frequency is the_____.

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

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

In frequency histograms,the frequencies associated with score values are labeled along the __,and the score values are labeled along the .