Question 1

Pie charts are at their most useful when

Accepted Answer

A) there are multiple variables to be compared 
B) there are few categories 
C) there are proportions to be compared 
D) the categories to be compared are in different colors 
A) there are multiple variables to be compared 
B) there are few categories 
C) there are proportions to be compared 
D) the categories to be compared are in different colors B

Question 2

Line graphs are primarily used when

Accepted Answer

A) the data are amenable to being presented in straight lines 
B) comparisons are not needed because of the difficulty of interpreting multiple lines 
C) there are two variables to show the relationship between them 
D) a and c above 
A) the data are amenable to being presented in straight lines 
B) comparisons are not needed because of the difficulty of interpreting multiple lines 
C) there are two variables to show the relationship between them 
D) a and c above C

Question 3

Graphical statistics are part of what is generally called exploratory data anslysis.

Accepted Answer

A) True 
 B)False  True

Question 4

Continuous data

Accepted Answer

A) are linear 
B) have interval and ratio level measurement 
C) work best in pie charts 
D) are restricted to numbers with decimals 
A) are linear 
B) have interval and ratio level measurement 
C) work best in pie charts 
D) are restricted to numbers with decimals

Question 5

The two variable line graph is probably one of the least commonly used graphical techniques in statistics.

Accepted Answer

A) True 
 B)False

Question 6

Bar charts can show overall trends.

Accepted Answer

A) True 
 B)False

Question 7

Bar charts are useful when there are:

Accepted Answer

A) several discrete categories 
B) data represented by similar numbers of cases 
C) fifteen or more categories 
D) none of the above 
A) several discrete categories 
B) data represented by similar numbers of cases 
C) fifteen or more categories 
D) none of the above

Question 8

Scatterplots should never be used unless you can draw a straight line through the data.

Accepted Answer

A) True 
 B)False

Question 9

A line graph is best used with which of the types of data below?

Accepted Answer

A) curvilinear 
B) linear 
C) discrete 
D) continuous 
A) curvilinear 
B) linear 
C) discrete 
D) continuous

Question 10

Graphical statistics enable an analyst to grasp the essential details of variable distributions.

Accepted Answer

A) True 
 B)False

Question 11

A key focus in graphical statistics is not to do something that would mislead people.This usually means eliminating distractions or distortions present in:

Accepted Answer

A) the relative size of the graph elements 
B) the scale 
C) over labeling 
D) all of the above 
A) the relative size of the graph elements 
B) the scale 
C) over labeling 
D) all of the above

Question 12

One of the best graphical statistics for locating extremes in the data is a

Accepted Answer

A) pie chart 
B) scatterplot 
C) histogram 
D) line graph 
A) pie chart 
B) scatterplot 
C) histogram 
D) line graph

Question 13

Graphical statistics designed for discrete data include

Accepted Answer

A) line graphs 
B) histograms 
C) scatterplots 
D) bar charts 
A) line graphs 
B) histograms 
C) scatterplots 
D) bar charts

Question 14

When comparing the data distribution of one variable by using another variable with two categories,it is best not to use a bar chart.

Accepted Answer

A) True 
 B)False

Question 15

Pie charts can handle more categories than bar charts.

Accepted Answer

A) True 
 B)False

Question 16

Graphical statistics designed for continuous data include

Accepted Answer

A) pie charts 
B) bar charts 
C) histograms 
D) pictograms 
A) pie charts 
B) bar charts 
C) histograms 
D) pictograms

Question 17

Line graphs are potentially the most useful of all graphs.

Accepted Answer

A) True 
 B)False

Question 18

Discrete data

Accepted Answer

A) are rarely used 
B) represent sensitive information and should be kept confidential 
C) describe categories 
D) a and b above 
A) are rarely used 
B) represent sensitive information and should be kept confidential 
C) describe categories 
D) a and b above

Question 19

Extremes are also referred to as

Accepted Answer

A) outliers 
B) high scores 
C) peak scores 
D) all of the above 
A) outliers 
B) high scores 
C) peak scores 
D) all of the above

Question 20

Every graphical statistic has some common parts that need to be presented; they are

Accepted Answer

A) labels,line ticks,different colors 
B) title,some type of scale,different colors, 
C) title,labels,subtitles 
D) labels,some type of scale,graph elements 
A) labels,line ticks,different colors 
B) title,some type of scale,different colors, 
C) title,labels,subtitles 
D) labels,some type of scale,graph elements

Exam 3: Graphical Statistics

Pie charts are at their most useful when

Line graphs are primarily used when

Graphical statistics are part of what is generally called exploratory data anslysis.

Continuous data

The two variable line graph is probably one of the least commonly used graphical techniques in statistics.

Bar charts can show overall trends.

Bar charts are useful when there are:

Scatterplots should never be used unless you can draw a straight line through the data.

A line graph is best used with which of the types of data below?

Graphical statistics enable an analyst to grasp the essential details of variable distributions.

A key focus in graphical statistics is not to do something that would mislead people.This usually means eliminating distractions or distortions present in:

One of the best graphical statistics for locating extremes in the data is a

Graphical statistics designed for discrete data include

When comparing the data distribution of one variable by using another variable with two categories,it is best not to use a bar chart.

Pie charts can handle more categories than bar charts.

Graphical statistics designed for continuous data include

Line graphs are potentially the most useful of all graphs.

Discrete data

Extremes are also referred to as

Every graphical statistic has some common parts that need to be presented; they are

Introduction to Statistics

Levels of Measurement

Measures of Central Tendency

Measures of Dispersion

Curves and Distributions

Frequency Distributions

Elementary Relationships: Crosstabulation Tables

Hypotheses and Sampling Distributions

Statistical Significance

Testing for Significance: the Chi-Square Test

Testing for Significance in Two Groups: the T-Test

Testing for Significance in Multiple Groups: the Analysis of Variance Statistic

The Concept of Association

Testing for Association: Phi

Testing for Association: Pearsons R and Regression

Doing Real Research: Elementary Multivariate Relationships

Box Plots

Skewness and Kurtosis

Ordinal-Level Tests of Significance

Multiple Comparison Tests

Nominal Level Tests of Association

Ordinal Level Tests of Association

Addendum Probability

Filters