Question 1

In order to draw a scatter diagram,we need interval data for

Accepted Answer

A) one variable 
B) two variables 
C) three variables 
D) four variables 
A) one variable 
B) two variables 
C) three variables 
D) four variables

Question 2

Possible methods of graphical deception include:

Accepted Answer

A) A graph without a scale on one axis. 
B) A graph's caption that influences the impression of the viewer. 
C) A graph where absolute changes,rather than percentage changes,are reported. 
D) All of these choices are true. 
A) A graph without a scale on one axis. 
B) A graph's caption that influences the impression of the viewer. 
C) A graph where absolute changes,rather than percentage changes,are reported. 
D) All of these choices are true.

Question 3

A skewed histogram is one with a long tail extending either to the right or left.

Accepted Answer

A) True 
 B)False

Question 4

A supermarket's monthly sales (in thousands of dollars)for the last year were as follows:   Construct a relative frequency bar chart for this data set.How many observations are there in this data set?

Accepted Answer

See the graph below.There are

Question 5

The scatter diagram below depicts data with a negative linear relationship.

Accepted Answer

A) True 
 B)False

Question 6

A pie chart uses relative frequencies to summarize the data so including the sample size is not important.

Accepted Answer

A) True 
 B)False

Question 7

Is it fair to depict Texas as most tornado prone area of the U.S.by showing it has the highest number of tornados of all states in the U.S.?

Accepted Answer

A) Yes,because number of tornadoes is the appropriate measure in this situation. 
B) Yes,because Texas is one of the largest states. 
C) No,because Texas is larger than almost every other state.Number of square miles should also be taken into account. 
D) No,because Texas has a very high population,and you need to report tornados per capita. 
A) Yes,because number of tornadoes is the appropriate measure in this situation. 
B) Yes,because Texas is one of the largest states. 
C) No,because Texas is larger than almost every other state.Number of square miles should also be taken into account. 
D) No,because Texas has a very high population,and you need to report tornados per capita.

Question 8

What kind(s)of data can be depicted by a line chart?

Accepted Answer

A) Frequencies of an interval over time. 
B) Frequencies of a nominal variable over time. 
C) Relative frequencies of a nominal variable over time. 
D) All of these choices are true. 
A) Frequencies of an interval over time. 
B) Frequencies of a nominal variable over time. 
C) Relative frequencies of a nominal variable over time. 
D) All of these choices are true.

Question 9

If the form of the graph replaces the substance of the data,the graph is performing to function and graphical excellence is achieved.

Accepted Answer

A) True 
 B)False

Question 10

A graph showing trends over time is called a(n)____________________ chart.

Accepted Answer

The answer of A graph showing trends over time is...

Question 11

A relative frequency distribution describes the proportion of data values that fall within each category.

Accepted Answer

A) True 
 B)False

Question 12

Slopes and trends in a line chart appear to be less steep if you ____________________ the horizontal (time)axis.

Accepted Answer

The answer of Slopes and trends in a line chart...

Question 13

Briefly explain why the histogram below is misleading.

Accepted Answer

The scale on the Y-axis has be

Question 14

Which of the following represents time-series data?

Accepted Answer

A) The length of time each of the top 100 stocks have been available on the NYSE. 
B) The most popular time of year that people purchase the top 100 stocks on the NYSE. 
C) The value of the #1 stock on the NYSE each month over a one-year period. 
D) All of these choices are true. 
A) The length of time each of the top 100 stocks have been available on the NYSE. 
B) The most popular time of year that people purchase the top 100 stocks on the NYSE. 
C) The value of the #1 stock on the NYSE each month over a one-year period. 
D) All of these choices are true.

Question 15

{Test Grades Narrative} Construct frequency and relative frequency distributions for this data set using seven class intervals.Describe the shape of the data set.

Accepted Answer

​ @#IMG-DLM& The data is relat

Question 16

Time series data are often graphically depicted on a line chart,which is a plot of the variable of interest over time.

Accepted Answer

A) True 
 B)False

Question 17

In applications involving two variables,X and Y,where one variable depends to some degree on the other,we call X the ____________________ variable.

Accepted Answer

The answer of In applications involving two variables,X and Y,where...

Question 18

Graphical techniques should not be used to present data if accurate tabular forms for the same data are available.

Accepted Answer

A) True 
 B)False

Question 19

Graphical excellence gives the greatest number of ideas in the shortest time with the least ink in the smallest space.

Accepted Answer

A) True 
 B)False

Question 20

A(n)____________________ histogram has two peaks,not necessarily equal in height.

Accepted Answer

The answer of A(n)____________________ histogram has two peaks,not necessarily equal...

Exam 3: Graphical Descriptive Techniques 2

In order to draw a scatter diagram,we need interval data for

Possible methods of graphical deception include:

A skewed histogram is one with a long tail extending either to the right or left.

A supermarket's monthly sales (in thousands of dollars)for the last year were as follows: Construct a relative frequency bar chart for this data set.How many observations are there in this data set?

The scatter diagram below depicts data with a negative linear relationship.

A pie chart uses relative frequencies to summarize the data so including the sample size is not important.

Is it fair to depict Texas as most tornado prone area of the U.S.by showing it has the highest number of tornados of all states in the U.S.?

What kind(s)of data can be depicted by a line chart?

If the form of the graph replaces the substance of the data,the graph is performing to function and graphical excellence is achieved.

A graph showing trends over time is called a(n)____________________ chart.

A relative frequency distribution describes the proportion of data values that fall within each category.

Slopes and trends in a line chart appear to be less steep if you ____________________ the horizontal (time)axis.

Briefly explain why the histogram below is misleading.

Which of the following represents time-series data?

{Test Grades Narrative} Construct frequency and relative frequency distributions for this data set using seven class intervals.Describe the shape of the data set.

Time series data are often graphically depicted on a line chart,which is a plot of the variable of interest over time.

In applications involving two variables,X and Y,where one variable depends to some degree on the other,we call X the ____________________ variable.

Graphical techniques should not be used to present data if accurate tabular forms for the same data are available.

Graphical excellence gives the greatest number of ideas in the shortest time with the least ink in the smallest space.

A(n)____________________ histogram has two peaks,not necessarily equal in height.

What Is Statistics

Graphical Descriptive Techniques 1

Numerical Descriptive Techniques

Data Collection and Sampling

Probability

Random Variables and Discrete Probability Distributions

Continuous Probability Distributions

Sampling Distributions

Introduction to Estimation

Introduction to Hypothesis Testing

Inference About a Population

Inference About Comparing Two Populations

Analysis of Variance

Chi-Squared Tests

Simple Linear Regression and Correlation

Multiple Regression

Model Building

Nonparametric Statistics

Time-Series Analytics and Forecasting

Statistical Process Control

Decision Analysis

Conclusion

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