Question 1

State the original data displayed in the following stem-and-leaf display.

Accepted Answer

A) 3,2,3,6,4,7,8,8,5,4,and 9 
B) 32,33,36,47,48,54,and 59 
C) 32,33,36,47,48,48,54,and 59 
D) It is not possible to know the original data from this display. 
A) 3,2,3,6,4,7,8,8,5,4,and 9 
B) 32,33,36,47,48,54,and 59 
C) 32,33,36,47,48,48,54,and 59 
D) It is not possible to know the original data from this display.

Question 2

The data should be grouped for the following data set: 0,0,0,2,2,1,1,2,2,2,1,0,0,0,0,2,2,1,1,1,2,1,2,2,0,0,1,and 2.

Accepted Answer

A) True 
 B)False

Question 3

Which of the following is a type of graphical display used to summarize qualitative,discrete data?

Accepted Answer

A) bar chart 
B) pie chart 
C) histogram 
D) both A and B 
A) bar chart 
B) pie chart 
C) histogram 
D) both A and B

Question 4

What is the percentile point at the 50th percentile for the following distribution?

Accepted Answer

A) 21 
B) 23.5 
C) 25 
D) 25.5 
A) 21 
B) 23.5 
C) 25 
D) 25.5

Question 5

Which of the following is a type of graphical display used to summarize quantitative,continuous data?

Accepted Answer

A) histogram 
B) frequency polygon 
C) ogive 
D) all of the above 
A) histogram 
B) frequency polygon 
C) ogive 
D) all of the above

Question 6

The data should be ungrouped for the following data set: 6,7,7,7,7,7,7,8,8,8,9,9,9,6,6,6,8,and 7. ,

Accepted Answer

A) True 
 B)False

Question 7

A percentile is also called a:

Accepted Answer

A) score 
B) range 
C) distribution 
D) percentile point 
A) score 
B) range 
C) distribution 
D) percentile point

Question 8

Ungrouped data are always distributed in intervals.

Accepted Answer

A) True 
 B)False

Question 9

The range of scores in each interval of a grouped frequency distribution is called the

Accepted Answer

A) simple frequency 
B) interval width 
C) real range 
D) grouped data 
A) simple frequency 
B) interval width 
C) real range 
D) grouped data

Question 10

Bar charts are a lot like histograms,except

Accepted Answer

A) the bars displayed in the graph do not touch 
B) the bar chart summarizes quantitative data 
C) the bar chart summarizes continuous data 
D) all of the above 
A) the bars displayed in the graph do not touch 
B) the bar chart summarizes quantitative data 
C) the bar chart summarizes continuous data 
D) all of the above

Question 11

A psychologist wants to know how many of her clients continue with therapy for at least 12 days.If she constructs a frequency distribution for these data,what type of distribution would be most appropriate to answer her question?

Accepted Answer

A) a cumulative frequency distribution from the bottom up 
B) a cumulative frequency distribution from the top down 
C) a simple frequency distribution 
D) a relative frequency distribution 
A) a cumulative frequency distribution from the bottom up 
B) a cumulative frequency distribution from the top down 
C) a simple frequency distribution 
D) a relative frequency distribution

Question 12

Grouped data are used to summarize quantitative data that are continuous or discrete.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following requires the calculation of a real range?

Accepted Answer

A) frequency distributions for categorical 
B) frequency distributions for ungrouped data 
C) frequency distributions for grouped data 
D) frequency distributions that do not use real data 
A) frequency distributions for categorical 
B) frequency distributions for ungrouped data 
C) frequency distributions for grouped data 
D) frequency distributions that do not use real data

Question 14

A cumulative frequency distribution is the sum of frequencies across a series of intervals.

Accepted Answer

A) True 
 B)False

Question 15

A stem-and-leaf display retains the value of each data point.

Accepted Answer

A) True 
 B)False

Question 16

The midpoint of a given interval is the average of the upper and lower boundaries for that interval.

Accepted Answer

A) True 
 B)False

Question 17

A relative frequency distribution is appropriate when

Accepted Answer

A) there are large frequency counts in each interval 
B) the data are grouped into relatively small intervals 
C) there are open classes 
D) the interval width is too large 
A) there are large frequency counts in each interval 
B) the data are grouped into relatively small intervals 
C) there are open classes 
D) the interval width is too large

Question 18

The corresponding percentile of a given percentile point is the percentile rank of that score.

Accepted Answer

A) True 
 B)False

Question 19

To summarize relative percent data,a pie chart would be a good choice to display the data.

Accepted Answer

A) True 
 B)False

Question 20

A researcher wants to determine how many participants will take less than 24 seconds to complete a cognitive performance task.If he constructs a frequency distribution for these data,what type of distribution would be most appropriate to answer his question?

Accepted Answer

A) a simple frequency distribution 
B) a relative frequency distribution 
C) a cumulative frequency distribution from the bottom up 
D) a cumulative frequency distribution from the top down 
A) a simple frequency distribution 
B) a relative frequency distribution 
C) a cumulative frequency distribution from the bottom up 
D) a cumulative frequency distribution from the top down

State the original data displayed in the following stem-and-leaf display.

The data should be grouped for the following data set: 0,0,0,2,2,1,1,2,2,2,1,0,0,0,0,2,2,1,1,1,2,1,2,2,0,0,1,and 2.

Which of the following is a type of graphical display used to summarize qualitative,discrete data?

What is the percentile point at the 50th percentile for the following distribution?

Which of the following is a type of graphical display used to summarize quantitative,continuous data?

The data should be ungrouped for the following data set: 6,7,7,7,7,7,7,8,8,8,9,9,9,6,6,6,8,and 7. ,

A percentile is also called a:

Ungrouped data are always distributed in intervals.

The range of scores in each interval of a grouped frequency distribution is called the

Bar charts are a lot like histograms,except

A psychologist wants to know how many of her clients continue with therapy for at least 12 days.If she constructs a frequency distribution for these data,what type of distribution would be most appropriate to answer her question?

Grouped data are used to summarize quantitative data that are continuous or discrete.

Which of the following requires the calculation of a real range?

A cumulative frequency distribution is the sum of frequencies across a series of intervals.

A stem-and-leaf display retains the value of each data point.

The midpoint of a given interval is the average of the upper and lower boundaries for that interval.

A relative frequency distribution is appropriate when

The corresponding percentile of a given percentile point is the percentile rank of that score.

To summarize relative percent data,a pie chart would be a good choice to display the data.

A researcher wants to determine how many participants will take less than 24 seconds to complete a cognitive performance task.If he constructs a frequency distribution for these data,what type of distribution would be most appropriate to answer his question?

Introduction to Statistics

Summarizing Data: Central Tendency

Summarizing Data: Variability

Probability

Probability, Normal Distributions, and Z Scores

Probability and Sampling Distributions

Hypothesis Testing: Significance, Effect Size, and Power

Testing Means: One-Sample and Two-Independent Sample T Tests

Testing Means: Related Samples T Test

Estimation and Confidence Intervals

Analysis of Variance: One-Way Between-Subjects Design

Analysis of Variance: One-Way Within-Subjects Repeated Measures Design

Analysis of Variance: Two-Way Between-Subjects Factorial Design

Correlation

Linear Regression and Multiple Regression

Nonparametric Tests: Chi-Square Tests

Nonparametric Tests: Tests for Ordinal Data

Filters

Exam 2: Summarizing Data: Frequency Distributions in Tables and Graphs

State the original data displayed in the following stem-and-leaf display.

The data should be grouped for the following data set: 0,0,0,2,2,1,1,2,2,2,1,0,0,0,0,2,2,1,1,1,2,1,2,2,0,0,1,and 2.

Which of the following is a type of graphical display used to summarize qualitative,discrete data?

What is the percentile point at the 50th percentile for the following distribution?

Which of the following is a type of graphical display used to summarize quantitative,continuous data?

The data should be ungrouped for the following data set: 6,7,7,7,7,7,7,8,8,8,9,9,9,6,6,6,8,and 7. ,

A percentile is also called a:

Ungrouped data are always distributed in intervals.

The range of scores in each interval of a grouped frequency distribution is called the

Bar charts are a lot like histograms,except

A psychologist wants to know how many of her clients continue with therapy for at least 12 days.If she constructs a frequency distribution for these data,what type of distribution would be most appropriate to answer her question?

Grouped data are used to summarize quantitative data that are continuous or discrete.

Which of the following requires the calculation of a real range?

A cumulative frequency distribution is the sum of frequencies across a series of intervals.

A stem-and-leaf display retains the value of each data point.

The midpoint of a given interval is the average of the upper and lower boundaries for that interval.

A relative frequency distribution is appropriate when

The corresponding percentile of a given percentile point is the percentile rank of that score.

To summarize relative percent data,a pie chart would be a good choice to display the data.

A researcher wants to determine how many participants will take less than 24 seconds to complete a cognitive performance task.If he constructs a frequency distribution for these data,what type of distribution would be most appropriate to answer his question?

Introduction to Statistics

Summarizing Data: Central Tendency

Summarizing Data: Variability

Probability

Probability, Normal Distributions, and Z Scores

Probability and Sampling Distributions

Hypothesis Testing: Significance, Effect Size, and Power

Testing Means: One-Sample and Two-Independent Sample T Tests

Testing Means: Related Samples T Test

Estimation and Confidence Intervals

Analysis of Variance: One-Way Between-Subjects Design

Analysis of Variance: One-Way Within-Subjects Repeated Measures Design

Analysis of Variance: Two-Way Between-Subjects Factorial Design

Correlation

Linear Regression and Multiple Regression

Nonparametric Tests: Chi-Square Tests

Nonparametric Tests: Tests for Ordinal Data

Filters