Question 1

Which of these should you use to illustrate responses to the following question? "How many employees are working at each branch of our company?"

Accepted Answer

A)  scatterplot 
B)  frequency polygon 
C)  bar chart 
D)  histogram 
A)  scatterplot 
B)  frequency polygon 
C)  bar chart 
D)  histogram C

Question 2

List the steps in creating a frequency table. Explain how to calculate values at each step.

Accepted Answer

1. Column 1: List all the possible values for the variable in ascending order.
2. Column 2: Count the number of times each value you listed in Column 1 appears in the original dataset and record these values under f.
3. Column 3: Divide the f values you just calculated by n to determine rel. f.
4. Column 4: Count the number of values for each row and all the rows above it to determine cum. F.

Question 3

For the following dataset, what does f equal for the value "3"?
[2, 4, 1, 2, 5, 3, 4, 3, 1, 4]

Accepted Answer

A)  1 
B)  2 
C)  0.1 
D)  0.2 
A)  1 
B)  2 
C)  0.1 
D)  0.2 B

Question 4

For the following questions, consider the dataset below collected from a sample of trainees:
 $\begin{array}{ccc} 
& \text { Training } & \text { Test score } \
\hline 1 & \text { A } & 12 \
2 & \text { A } & 9 \
3 & \text { B } & 6 \
4 & \text { B } & 10 \
5 & \text { C } & 30 \
\hline
\end{array}$ Test scores represent the number of test questions trainees answered correctly on the post-training survey.
-What is the frequency of Training C?

Accepted Answer

A)  0.1 
B)  0.2 
C)  1 
D)  2 
A)  0.1 
B)  0.2 
C)  1 
D)  2

Question 5

In order to help interpret large amounts of raw data, it is helpful to translate data into illustrations, pictures, or graphics.

Accepted Answer

A) True 
 B)False

Question 6

Your friend wants to know why he should bother learning about statistics. Can't he just hire someone else to do that for him? Explain why your friend would benefit by learning about appropriate data translation and provide an example of how this knowledge could help him.

Accepted Answer

Statistics, including figures and tables

Question 7

In a bar chart, what is represented on the x-axis?

Accepted Answer

A)  frequencies 
B)  relative frequencies 
C)  variable categories 
D)  proportions 
A)  frequencies 
B)  relative frequencies 
C)  variable categories 
D)  proportions

Question 8

If you have quantitative data, you should use a histogram instead of a bar chart.

Accepted Answer

A) True 
 B)False

Question 9

For the following questions, consider the dataset below collected from a sample of trainees:
 $\begin{array}{ccc} 
& \text { Training } & \text { Test score } \
\hline 1 & \text { A } & 12 \
2 & \text { A } & 9 \
3 & \text { B } & 6 \
4 & \text { B } & 10 \
5 & \text { C } & 30 \
\hline
\end{array}$ Test scores represent the number of test questions trainees answered correctly on the post-training survey.
-The scale of measurement for the Test Score variable above is ______.

Accepted Answer

A)  qualitative 
B)  quantitative 
C)  nominal 
D)  ratio 
A)  qualitative 
B)  quantitative 
C)  nominal 
D)  ratio

Question 10

Explain the major differences between a bar chart and a histogram, including when to use each.

Accepted Answer

There are two primary differences. First

Question 11

If n = 20 and f = 4 for the value 2, the relative frequency of 2 is 5.

Accepted Answer

A) True 
 B)False

Question 12

How many values should be included in a frequency table for the following data?
[1st, 5th, 5th, 2nd, 4th, 2nd, 5th, 1st, 2nd]

Accepted Answer

A)  4 
B)  5 
C)  6 
D)  all of these 
A)  4 
B)  5 
C)  6 
D)  all of these

Question 13

The primary difference between a histogram and a bar chart is that ______.

Accepted Answer

A)  there is no gap between the bars on a histogram. 
B)  histograms have an x- and y-axis. 
C)  the y-axis represents frequencies on a histogram. 
D)  the histogram is used for qualitative data. 
A)  there is no gap between the bars on a histogram. 
B)  histograms have an x- and y-axis. 
C)  the y-axis represents frequencies on a histogram. 
D)  the histogram is used for qualitative data.

Question 14

Quantitative and qualitative variables are treated the same when illustrated graphically.

Accepted Answer

A) True 
 B)False

Question 15

Which of these should you use to address the following question? "How does the distribution of salaries last year compare with the distribution of salaries this year?"

Accepted Answer

A)  scatterplot 
B)  frequency polygon 
C)  pie chart 
D)  bar chart 
A)  scatterplot 
B)  frequency polygon 
C)  pie chart 
D)  bar chart

Question 16

When creating a bar chart, your bars should touch.

Accepted Answer

A) True 
 B)False

Question 17

The number of cases in a sample is the sample size.

Accepted Answer

A) True 
 B)False

Question 18

The range of values represented by a single bar in a histogram is called a ______.

Accepted Answer

A)  distribution 
B)  frequency 
C)  bin 
D)  box 
A)  distribution 
B)  frequency 
C)  bin 
D)  box

Question 19

For the following questions, consider the dataset below collected from a sample of trainees:
 $\begin{array}{ccc} 
& \text { Training } & \text { Test score } \
\hline 1 & \text { A } & 12 \
2 & \text { A } & 9 \
3 & \text { B } & 6 \
4 & \text { B } & 10 \
5 & \text { C } & 30 \
\hline
\end{array}$ Test scores represent the number of test questions trainees answered correctly on the post-training survey.
-What is N in the dataset above?

Accepted Answer

A)  2 
B)  5 
C)  10 
D)  cannot be determined from the dataset provided 
A)  2 
B)  5 
C)  10 
D)  cannot be determined from the dataset provided

Question 20

To ensure that your pie chart is easily interpretable, your pie chart should have which of the following attributes?

Accepted Answer

A)  The chart should contain a legend. 
B)  Each wedge should be the same colour as every other wedge. 
C)  Each wedge should contain only a relative frequency. 
D)  The pie should be taller than it is wide. 
A)  The chart should contain a legend. 
B)  Each wedge should be the same colour as every other wedge. 
C)  Each wedge should contain only a relative frequency. 
D)  The pie should be taller than it is wide.

Which of these should you use to illustrate responses to the following question? "How many employees are working at each branch of our company?"

List the steps in creating a frequency table. Explain how to calculate values at each step.

For the following dataset, what does f equal for the value "3"? [2, 4, 1, 2, 5, 3, 4, 3, 1, 4]

For the following questions, consider the dataset below collected from a sample of trainees: Training Test score 1 A 12 2 A 9 3 B 6 4 B 10 5 C 30 Test scores represent the number of test questions trainees answered correctly on the post-training survey. -What is the frequency of Training C?

In order to help interpret large amounts of raw data, it is helpful to translate data into illustrations, pictures, or graphics.

Your friend wants to know why he should bother learning about statistics. Can't he just hire someone else to do that for him? Explain why your friend would benefit by learning about appropriate data translation and provide an example of how this knowledge could help him.

In a bar chart, what is represented on the x-axis?

If you have quantitative data, you should use a histogram instead of a bar chart.

Explain the major differences between a bar chart and a histogram, including when to use each.

If n = 20 and f = 4 for the value 2, the relative frequency of 2 is 5.

How many values should be included in a frequency table for the following data? [1st, 5th, 5th, 2nd, 4th, 2nd, 5th, 1st, 2nd]

The primary difference between a histogram and a bar chart is that ______.

Quantitative and qualitative variables are treated the same when illustrated graphically.

Which of these should you use to address the following question? "How does the distribution of salaries last year compare with the distribution of salaries this year?"

When creating a bar chart, your bars should touch.

The number of cases in a sample is the sample size.

The range of values represented by a single bar in a histogram is called a ______.

For the following questions, consider the dataset below collected from a sample of trainees: Training Test score 1 A 12 2 A 9 3 B 6 4 B 10 5 C 30 Test scores represent the number of test questions trainees answered correctly on the post-training survey. -What is N in the dataset above?

To ensure that your pie chart is easily interpretable, your pie chart should have which of the following attributes?

The Language of Statistics

Central Tendency and Variability

Probability Distributions

Sampling Distributions

Estimation and Confidence Intervals

Hypothesis Testing

Tests for Significance: Z-Tests and One-Sample T-Tests

Tests for Significance: Paired and Independent-Samples T-Test

Analysis of Variance Anova

CHI-Squared Tests of Fit

Correlation R and Regression Y BX A

Matching Statistical Tests to Business Problems

Filters

Exam 2: Working With Numbers and Data Display

Which of these should you use to illustrate responses to the following question? "How many employees are working at each branch of our company?"

List the steps in creating a frequency table. Explain how to calculate values at each step.

For the following dataset, what does f equal for the value "3"? [2, 4, 1, 2, 5, 3, 4, 3, 1, 4]

For the following questions, consider the dataset below collected from a sample of trainees: Training Test score 1 A 12 2 A 9 3 B 6 4 B 10 5 C 30 Test scores represent the number of test questions trainees answered correctly on the post-training survey. -What is the frequency of Training C?

In order to help interpret large amounts of raw data, it is helpful to translate data into illustrations, pictures, or graphics.

Your friend wants to know why he should bother learning about statistics. Can't he just hire someone else to do that for him? Explain why your friend would benefit by learning about appropriate data translation and provide an example of how this knowledge could help him.

In a bar chart, what is represented on the x-axis?

If you have quantitative data, you should use a histogram instead of a bar chart.

Explain the major differences between a bar chart and a histogram, including when to use each.

If n = 20 and f = 4 for the value 2, the relative frequency of 2 is 5.

How many values should be included in a frequency table for the following data? [1st, 5th, 5th, 2nd, 4th, 2nd, 5th, 1st, 2nd]

The primary difference between a histogram and a bar chart is that ______.

Quantitative and qualitative variables are treated the same when illustrated graphically.

Which of these should you use to address the following question? "How does the distribution of salaries last year compare with the distribution of salaries this year?"

When creating a bar chart, your bars should touch.

The number of cases in a sample is the sample size.

The range of values represented by a single bar in a histogram is called a ______.

For the following questions, consider the dataset below collected from a sample of trainees: Training Test score 1 A 12 2 A 9 3 B 6 4 B 10 5 C 30 Test scores represent the number of test questions trainees answered correctly on the post-training survey. -What is N in the dataset above?

To ensure that your pie chart is easily interpretable, your pie chart should have which of the following attributes?

The Language of Statistics

Central Tendency and Variability

Probability Distributions

Sampling Distributions

Estimation and Confidence Intervals

Hypothesis Testing

Tests for Significance: Z-Tests and One-Sample T-Tests

Tests for Significance: Paired and Independent-Samples T-Test

Analysis of Variance Anova

CHI-Squared Tests of Fit

Correlation R and Regression Y BX A

Matching Statistical Tests to Business Problems

Filters