Question 1

What is the purpose of a plot, graph, or picture of data?

Accepted Answer

To give you a quick visual sum

Question 2

What is one advantage of a bar graph over a pie chart?

Accepted Answer

a bar graph is much more versa

Question 3

Which of the following is not true about a plot, graph, or picture of data?

Accepted Answer

A) Extraneous information should be excluded; the more extra information on a graph, the more confusing it can get. 
B) Many graphs are misleading; the public must look at them critically before trying to interpret their results. 
C) The scale on a graph doesn't matter.Measurement data can be displayed using any scale as long as that scale is consistent. 
D) All of the above statements are true. 
A) Extraneous information should be excluded; the more extra information on a graph, the more confusing it can get. 
B) Many graphs are misleading; the public must look at them critically before trying to interpret their results. 
C) The scale on a graph doesn't matter.Measurement data can be displayed using any scale as long as that scale is consistent. 
D) All of the above statements are true.

Question 4

A __________ is like a bar graph except that it uses pictures related to the topic of the graph.

Accepted Answer

The answer of A __________ is like a bar graph...

Question 5

If the scale on the vertical axis is in very large increments with very little space between each one, what does this do to the appearance of the data?

Accepted Answer

A) It makes differences appear smaller than they really are. 
B) It makes differences appear larger than they really are. 
C) It does nothing to affect the appearance of the data. 
D) It makes the information easier to read and understand. 
A) It makes differences appear smaller than they really are. 
B) It makes differences appear larger than they really are. 
C) It does nothing to affect the appearance of the data. 
D) It makes the information easier to read and understand.

Question 6

It is easy to be misled by pictograms.Explain how.

Accepted Answer

to avoid distorting the pictur

Question 7

Suppose you have data on the number of accidents at a certain inter

Accepted Answer

A) A bar graph with one bar for each year of data available; the bars are an equal distance apart. 
B) A line graph with the years from 1960 through 1990 marked off in equal increments and dots on the line graph representing the number of accidents for the years for which data are available.The dots are connected with lines. 
C) A pie chart with a slice for the percentage of accidents occurring in each of the four years for which data is available. 
D) Any of the above. 
A) A bar graph with one bar for each year of data available; the bars are an equal distance apart. 
B) A line graph with the years from 1960 through 1990 marked off in equal increments and dots on the line graph representing the number of accidents for the years for which data are available.The dots are connected with lines. 
C) A pie chart with a slice for the percentage of accidents occurring in each of the four years for which data is available. 
D) Any of the above.

Question 8

For Questions use the following narrative
Narrative: Pick 3 lottery
The Kansas Pick 3 Lottery results through 3/15/97 are shown in the table below.In this game, three numbers are drawn each week, and numbers can be repeated (such as 2, 3, 3).
  
-{Pick 3 lottery narrative} Using the number of times each number was drawn, display the data in a bar graph that looks as though the number 1 was chosen much less often, and number 2 much more often, than the other numbers.(This will be a misleading graph.) Explain why the lottery chose to display their data in a similar way in their newsletter.

Accepted Answer

the graph should have an exaggerated sca

Question 9

What type of data situation is best for using a pie chart (discuss type of data and number of variables)?

Accepted Answer

only one c

Question 10

Name three basic characteristics that a good plot, graph, or picture of data should exhibit.

Accepted Answer

Any 3 of the following: 
1) da

Question 11

A statistical picture isn't worth much if the __________ can't be trusted.

Accepted Answer

data (or s

Question 12

What characteristics do statistical pictures of measurement data allow us to examine?

Accepted Answer

A) Trends or patterns in the data. 
B) Variability in the data. 
C) The overall shape of the data. 
D) All of the above. 
A) Trends or patterns in the data. 
B) Variability in the data. 
C) The overall shape of the data. 
D) All of the above.

Question 13

Which of the following is not true about the plots, graphs, or pictures of data that you come across in the media?

Accepted Answer

A) Most of these pictures can give you a clear, quick visual summary of that data. 
B) One purpose is to convey a message more quickly than if you had to study the data on your own. 
C) Very few of the pictures are misleading because they are checked for accuracy and fairness before being presented. 
D) None of the above. 
A) Most of these pictures can give you a clear, quick visual summary of that data. 
B) One purpose is to convey a message more quickly than if you had to study the data on your own. 
C) Very few of the pictures are misleading because they are checked for accuracy and fairness before being presented. 
D) None of the above.

Question 14

Which of the following should be indicated by the labels on a graph?

Accepted Answer

A) The title or purpose of the picture. 
B) What each of the axes, bars, pie segments, etc., denotes. 
C) The scale of each axis, including starting points. 
D) All of the above. 
A) The title or purpose of the picture. 
B) What each of the axes, bars, pie segments, etc., denotes. 
C) The scale of each axis, including starting points. 
D) All of the above.

Question 15

What two things should you check regarding the timeline of a time series in order to avoid being misled?

Accepted Answer

1) the length of the

Question 16

In what way(s) can a poorly done histogram be misleading?

Accepted Answer

A) Changes in labeling on one or more axes. 
B) Not starting at zero as a way to exaggerate trends. 
C) Using poor information. 
D) All of the above. 
A) Changes in labeling on one or more axes. 
B) Not starting at zero as a way to exaggerate trends. 
C) Using poor information. 
D) All of the above.

Question 17

If a long-term trend in a time series plot is linear, we can estimate it by finding a regression line, with time period as the __________ variable.

Accepted Answer

The answer of If a long-term trend in a time...

Question 18

Which of the following components of a time series plot is defined as what's left over when the other three components have been removed?

Accepted Answer

A) Random fluctuations 
B) Seasonal components 
C) Irregular cycles 
D) Long-term trend 
A) Random fluctuations 
B) Seasonal components 
C) Irregular cycles 
D) Long-term trend

Question 19

Name one way in which a time series plot can be misleading.

Accepted Answer

any reasonable answer ok; examples: 1) t

Question 20

Use the following narrative: Narrative: Lottery dollar. Suppose you came across the following graph in the paper, accompanied by an article on where each dollar spent on lottery tickets goes.
 
-{Lottery dollar narrative} This graph has a problem, according to the four characteristics that any good graph should have.What is the problem with this graph?

Accepted Answer

There is n

Exam 9: Plots, Graphs, and Pictures

What is the purpose of a plot, graph, or picture of data?

What is one advantage of a bar graph over a pie chart?

Which of the following is not true about a plot, graph, or picture of data?

A __________ is like a bar graph except that it uses pictures related to the topic of the graph.

If the scale on the vertical axis is in very large increments with very little space between each one, what does this do to the appearance of the data?

It is easy to be misled by pictograms.Explain how.

Suppose you have data on the number of accidents at a certain inter

What type of data situation is best for using a pie chart (discuss type of data and number of variables)?

Name three basic characteristics that a good plot, graph, or picture of data should exhibit.

A statistical picture isn't worth much if the __________ can't be trusted.

What characteristics do statistical pictures of measurement data allow us to examine?

Which of the following is not true about the plots, graphs, or pictures of data that you come across in the media?

Which of the following should be indicated by the labels on a graph?

What two things should you check regarding the timeline of a time series in order to avoid being misled?

In what way(s) can a poorly done histogram be misleading?

If a long-term trend in a time series plot is linear, we can estimate it by finding a regression line, with time period as the __________ variable.

Which of the following components of a time series plot is defined as what's left over when the other three components have been removed?

Name one way in which a time series plot can be misleading.

The Benefits and Risks of Using Statistics

Reading the News

Measurements, Mistakes, and Misunderstandings

How to Get a Good Sample

Experiments and Observational Studies

Getting the Big Picture

Summarizing and Displaying Measurement Data

Bell-Shaped Curves and Other Shapes

Relationships Between Measurement Variables

Relationships Can Be Deceiving

Relationships Between Categorical Variables

Statistical Significance for 2 2 Tables

Understanding Probability and Long-Term Expectations

Understanding Uncertainty Through Simulation

Psychological Influences on Personal Probability

When Intuition Differs From Relative Frequency

Understanding the Economic News

The Diversity of Samples From the Same Population

Estimating Proportions With Confidence

The Role of Confidence Intervals in Research

Rejecting Chancetesting Hypotheses in Research

Hypothesis Testingexamples and Case Studies

Significance, Importance, and Undetected Differences

Meta-Analysis: Resolving Inconsistencies Across Studies

Ethics in Statistical Studies

Putting What You Have Learned to the Test

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