Question 1

Which would be the correct way to split the number 237 in a stem-and-leaf graph?

Accepted Answer

A)  2 would be the stem, and 37 as the leaf. 
B)  23 as the stem, and 7 as the leaf. 
C)  237 is the stem, there is no leaf. 
D)  There is no stem, and 237 are all leaf. 
A)  2 would be the stem, and 37 as the leaf. 
B)  23 as the stem, and 7 as the leaf. 
C)  237 is the stem, there is no leaf. 
D)  There is no stem, and 237 are all leaf.

Question 2

When using a stem-and-leaf plot, it is still possible to identify all the datapoints in a dataset.

Accepted Answer

A) True 
 B)False

Question 3

It is possible for the reader of statistics to over interpret what is being stated on a graph.

Accepted Answer

A) True 
 B)False

Question 4

Using the data below about how many airline miles each participant accrued over the span of the year
 $$\begin{array} { c c } 
\text { No. of miles } & f \
0 - 4999 & 241 \
5000 - 9999 & 452 \
10000 - 14999 & 540 \
15000 - 19999 & 869 \
20000 - 24999 & 823 \
25000 - 29999 & 972 \
30000 - 34999 & 1004 \
35000 - 39999 & 1138 \
40000 - 44999 & 1034 \
45000 - 49999 & 1497 \
50000 - 54999 & 1429 \
55000 - 59999 & 1471 \
60000 - 64999 & 1365 \
65000 - 69999 & 1372 \
70000 - 74999 & 1241 \
75000 - 79999 & 821 \
80000 - 84999 & 624 \
85000 - 89999 & 246 \
90000 - 94999 & 168 \
95000 - 99999 & 34
\end{array}$$ In this type of data visualization, frequencies are plotted on which axis?

Accepted Answer

The answer of Using the data below about how many...

Question 5

Which of the following is not good practice when plotting graphs?

Accepted Answer

A)  x and y axes intersect at 0 
B)  x and y axes are clearly labeled 
C)  creating as many graphs as possible 
D)  having a title to your graph 
A)  x and y axes intersect at 0 
B)  x and y axes are clearly labeled 
C)  creating as many graphs as possible 
D)  having a title to your graph

Question 6

Below are some data about whether a sample of individuals knows how to ride a bicycle
 $$\begin{array} { c c } 
\hline \text { Participant ID } & \text { Yes or No } \
\hline 1 & \text { Yes } \
2 & \text { Yes } \
3 & \text { No } \
4 & \text { No } \
5 & \text { Yes } \
6 & \text { No } \
7 & \text { Yes } \
8 & \text { Yes } \
9 & \text { Yes } \
10 & \text { No } \
11 & \text { Yes } \
12 & \text { No } \
13 & \text { No } \
14 & \text { No } \
15 & \text { Yes } \
\hline
\end{array}$$ What percentage of the participants knows how to ride a bicycle?

Accepted Answer

The answer of Below are some data about whether a...

Question 7

Pie charts are most useful when presenting categorical data and relative frequencies.

Accepted Answer

A) True 
 B)False

Question 8

Use the following stem and leaf-plot to answer the next few questions. The data plots the temperature of the day when there were earthquakes in the last 5 years.
Identify one other way to graph this data

Accepted Answer

Frequency

Question 9

For each scenario, identify the best type of visualization for the data
A research wants to plot the relationship between income and the number of years of education in a sample of employed workers.

Accepted Answer

The answer of For each scenario, identify the best type...

Question 10

Scatterplots were created by

Accepted Answer

A)  Darwin 
B)  Galton 
C)  Tukey 
D)  Pearson 
A)  Darwin 
B)  Galton 
C)  Tukey 
D)  Pearson

Question 11

A manager wants to track his employees' productivity throughout the work day to see when his team needs the most support to increase output. He collects his data that shows the amount of output his workers are producing every hour. How can he visualize the data?

Accepted Answer

A)  stem-and-leaf plot 
B)  time-series plot 
C)  pie chart 
D)  frequency polygon 
A)  stem-and-leaf plot 
B)  time-series plot 
C)  pie chart 
D)  frequency polygon

Question 12

Which of the following is not the right way to use a graph?

Accepted Answer

A)  Time-series graphs usually have time on the x-axis 
B)  Pie charts are used to relative frequencies 
C)  Frequency polygons should be used just like bar charts 
D)  Histograms should have bars that are touching each other 
A)  Time-series graphs usually have time on the x-axis 
B)  Pie charts are used to relative frequencies 
C)  Frequency polygons should be used just like bar charts 
D)  Histograms should have bars that are touching each other

Question 13

When plotting a bar chart, the bars in the graph are not supposed to touch

Accepted Answer

A) True 
 B)False

Question 14

A frequency polygon is best used when data are ________________ while a bar chart is best used when the data are __________________.

Accepted Answer

A)  On an ordinal scale; on a nominal scale 
B)  continuous; discrete 
C)  categorical; continuous 
D)  discrete; on an ordinal scale. 
A)  On an ordinal scale; on a nominal scale 
B)  continuous; discrete 
C)  categorical; continuous 
D)  discrete; on an ordinal scale.

Question 15

A customer service center is interested in how many calls they get during different times of the day. They record the number of calls they receive ever two hours (time here is presented in military time).
 $$\begin{array} { c c } 
\hline \text { Time } & \text { Calls } \
\hline 2 : 00 & 62 \
4 : 00 & 97 \
6 : 00 & 54 \
8 : 00 & 43 \
10 : 00 & 114 \
12 : 00 & 172 \
14 : 00 & 143 \
16 : 00 & 82 \
18 : 00 & 42 \
20 : 00 & 27 \
22 : 00 & 10 \
24 : 00 & 3 \
\hline
\end{array}$$ At which hour did the call center receive the fewest calls? At which hour did they receive the most?

Accepted Answer

24:00 the

Question 16

A frequency histogram is best used when data is ________________ while a bar chart is best used when the data is __________________.

Accepted Answer

A)  on an ordinal scale; on a nominal scale 
B)  on a ratio scale; on a nominal scale 
C)  discrete; continuous 
D)  discrete; on an ordinal scale. 
A)  on an ordinal scale; on a nominal scale 
B)  on a ratio scale; on a nominal scale 
C)  discrete; continuous 
D)  discrete; on an ordinal scale.

Question 17

Use the following stem and leaf-plot to answer the next few questions. The data plots the temperature of the day when there were earthquakes in the last 5 years.

Accepted Answer

The answer of Use the following stem and leaf-plot to...

Question 18

Bar charts are for discrete data and histograms are for continuous data

Accepted Answer

A) True 
 B)False

Question 19

A researcher is interested in the number of hours football players spend practicing during the season. He wants to plot the data showing the number of players who practice at various amounts of hours. Which of the following is the best way to plot this data?

Accepted Answer

A)  histograms and frequency polygons 
B)  Pie charts 
C)  Bar charts 
D)  Any of the above will work equally effectively. 
A)  histograms and frequency polygons 
B)  Pie charts 
C)  Bar charts 
D)  Any of the above will work equally effectively.

Question 20

When plotting a graph, the axes should always be labeled.

Accepted Answer

A) True 
 B)False

Which would be the correct way to split the number 237 in a stem-and-leaf graph?

When using a stem-and-leaf plot, it is still possible to identify all the datapoints in a dataset.

It is possible for the reader of statistics to over interpret what is being stated on a graph.

Which of the following is not good practice when plotting graphs?

Below are some data about whether a sample of individuals knows how to ride a bicycle Participant ID Yes or No 1 Yes 2 Yes 3 No 4 No 5 Yes 6 No 7 Yes 8 Yes 9 Yes 10 No 11 Yes 12 No 13 No 14 No 15 Yes What percentage of the participants knows how to ride a bicycle?

Pie charts are most useful when presenting categorical data and relative frequencies.

Use the following stem and leaf-plot to answer the next few questions. The data plots the temperature of the day when there were earthquakes in the last 5 years. Identify one other way to graph this data

For each scenario, identify the best type of visualization for the data A research wants to plot the relationship between income and the number of years of education in a sample of employed workers.

Scatterplots were created by

A manager wants to track his employees' productivity throughout the work day to see when his team needs the most support to increase output. He collects his data that shows the amount of output his workers are producing every hour. How can he visualize the data?

Which of the following is not the right way to use a graph?

When plotting a bar chart, the bars in the graph are not supposed to touch

A frequency polygon is best used when data are while a bar chart is best used when the data are __.

A frequency histogram is best used when data is while a bar chart is best used when the data is __.

Use the following stem and leaf-plot to answer the next few questions. The data plots the temperature of the day when there were earthquakes in the last 5 years.

Bar charts are for discrete data and histograms are for continuous data

A researcher is interested in the number of hours football players spend practicing during the season. He wants to plot the data showing the number of players who practice at various amounts of hours. Which of the following is the best way to plot this data?

When plotting a graph, the axes should always be labeled.

Introduction: Statistics--Who Needs Them

Types of Data

Measures of Central Tendency: Whats so Average About the Mean

Variability: the Law of Life

Where Am I Normal Distributions and Standard Scores

Basic Probability Theory

The Central Limit Theorem and Hypothesis Testing

The Z-Test

The T-Test

Analysis of Variance

Confidence Intervals and Effect Size: Building a Better Mousetrap

Correlation and Regression: Are We Related

The Chi-Square Test

Non-Parametric Tests

Which Test Should I Use and Why

Filters

Exam 3: A Picture Is Worth a Thousand Words: Creating and Interpreting Graphics

Which would be the correct way to split the number 237 in a stem-and-leaf graph?

When using a stem-and-leaf plot, it is still possible to identify all the datapoints in a dataset.

It is possible for the reader of statistics to over interpret what is being stated on a graph.

Which of the following is not good practice when plotting graphs?

Below are some data about whether a sample of individuals knows how to ride a bicycle Participant ID Yes or No 1 Yes 2 Yes 3 No 4 No 5 Yes 6 No 7 Yes 8 Yes 9 Yes 10 No 11 Yes 12 No 13 No 14 No 15 Yes What percentage of the participants knows how to ride a bicycle?

Pie charts are most useful when presenting categorical data and relative frequencies.

Use the following stem and leaf-plot to answer the next few questions. The data plots the temperature of the day when there were earthquakes in the last 5 years. Identify one other way to graph this data

For each scenario, identify the best type of visualization for the data A research wants to plot the relationship between income and the number of years of education in a sample of employed workers.

Scatterplots were created by

A manager wants to track his employees' productivity throughout the work day to see when his team needs the most support to increase output. He collects his data that shows the amount of output his workers are producing every hour. How can he visualize the data?

Which of the following is not the right way to use a graph?

When plotting a bar chart, the bars in the graph are not supposed to touch

A frequency polygon is best used when data are ________________ while a bar chart is best used when the data are __________________.

A frequency histogram is best used when data is ________________ while a bar chart is best used when the data is __________________.

Use the following stem and leaf-plot to answer the next few questions. The data plots the temperature of the day when there were earthquakes in the last 5 years.

Bar charts are for discrete data and histograms are for continuous data

A researcher is interested in the number of hours football players spend practicing during the season. He wants to plot the data showing the number of players who practice at various amounts of hours. Which of the following is the best way to plot this data?

When plotting a graph, the axes should always be labeled.

Introduction: Statistics--Who Needs Them

Types of Data

Measures of Central Tendency: Whats so Average About the Mean

Variability: the Law of Life

Where Am I Normal Distributions and Standard Scores

Basic Probability Theory

The Central Limit Theorem and Hypothesis Testing

The Z-Test

The T-Test

Analysis of Variance

Confidence Intervals and Effect Size: Building a Better Mousetrap

Correlation and Regression: Are We Related

The Chi-Square Test

Non-Parametric Tests

Which Test Should I Use and Why

Filters

A frequency polygon is best used when data are while a bar chart is best used when the data are __.

A frequency histogram is best used when data is while a bar chart is best used when the data is __.