Question 1

A dot plot can be used to show _________________.

Accepted Answer

A)  The mean, median, and mode 
B)  The general shape of a distribution for a nominal qualitative variable 
C)  The distribution for a quantitative variable 
D)  The interquartile range 
A)  The mean, median, and mode 
B)  The general shape of a distribution for a nominal qualitative variable 
C)  The distribution for a quantitative variable 
D)  The interquartile range

Question 2

A dot plot is useful for showing individual observations.

Accepted Answer

A) True 
 B)False

Question 3

A telemarketing firm is monitoring the performance of its employees based on the number of sales per hour. One employee had the following sales for the last 19 hours.   For the distribution of number of sales per hour, 50% are equal or greater than ___________.

Accepted Answer

the median or 5 sales per hour

Question 4

The coefficient of skewness measures a distribution's ____________ symmetry.

Accepted Answer

The answer of The coefficient of skewness measures a distribution's...

Question 5

Percentiles divide a distribution into 100 equal parts.

Accepted Answer

A) True 
 B)False

Question 6

In a stem-and-leaf display, the leaf represents the members of a class in a frequency distribution.

Accepted Answer

A) True 
 B)False

Question 7

The following graph is a:

Accepted Answer

A)  Dot plot 
B)  Stem-and-leaf display 
C)  Box plot 
D)  Contingency table 
A)  Dot plot 
B)  Stem-and-leaf display 
C)  Box plot 
D)  Contingency table

Question 8

The eighth decile:

Accepted Answer

A)  contains at least 70 percent of the observations. 
B)  is the same as the 40th percentile. 
C)  is the same as the 70th percentile. 
D)  is the same as the 80th percentile. 
A)  contains at least 70 percent of the observations. 
B)  is the same as the 40th percentile. 
C)  is the same as the 70th percentile. 
D)  is the same as the 80th percentile.

Question 9

A stem-and-leaf display includes the following row: 3 | 0 1 3 5 7 9. Assume that the data is rounded to the nearest whole number. Which of the following statements is true?

Accepted Answer

A)  The frequency of the class is seven. 
B)  The minimum value in the class is 0. 
C)  The maximum value in the class is 39. 
D)  The class interval is 5. 
A)  The frequency of the class is seven. 
B)  The minimum value in the class is 0. 
C)  The maximum value in the class is 39. 
D)  The class interval is 5.

Question 10

Which of the following is not a measure of dispersion?

Accepted Answer

A)  The interquartile range 
B)  The standard deviation 
C)  The 50th percentile 
D)  The range 
A)  The interquartile range 
B)  The standard deviation 
C)  The 50th percentile 
D)  The range

Question 11

In a distribution, the second quartile corresponds with the __________.

Accepted Answer

A)  Mean 
B)  Median 
C)  Mode 
D)  Variance 
A)  Mean 
B)  Median 
C)  Mode 
D)  Variance

Question 12

A ___________ uses dots to show frequencies.

Accepted Answer

The answer of A ___________ uses dots to show frequencies....

Question 13

The ______________ is used to measure the relative symmetry of a distribution.

Accepted Answer

coefficien

Question 14

In the following table,

Accepted Answer

A)  The median is 2.5. 
B)  The minimum value is 135. 
C)  The maximum value is 456. 
D)  The range is 33. 
A)  The median is 2.5. 
B)  The minimum value is 135. 
C)  The maximum value is 456. 
D)  The range is 33.

Question 15

The following graph is a ___________.

Accepted Answer

A)  Dot plot 
B)  Stem-and-leaf display 
C)  Box plot 
D)  Scatter plot 
A)  Dot plot 
B)  Stem-and-leaf display 
C)  Box plot 
D)  Scatter plot

Question 16

The following table is a:

Accepted Answer

A)  Dot plot 
B)  Stem-and-leaf display 
C)  Box plot 
D)  Contingency table 
A)  Dot plot 
B)  Stem-and-leaf display 
C)  Box plot 
D)  Contingency table

Question 17

Outliers are clearly presented in a _____________.

Accepted Answer

A)  Dot plot 
B)  Stem-and-leaf display 
C)  Box plot 
D)  Contingency table 
A)  Dot plot 
B)  Stem-and-leaf display 
C)  Box plot 
D)  Contingency table

Question 18

A stem-and-leaf diagram shows the actual data values.

Accepted Answer

A) True 
 B)False

Question 19

The following graph is _______________.

Accepted Answer

A)  Positively skewed 
B)  Negatively skewed 
C)  Symmetric 
D)  Uniformly distributed 
A)  Positively skewed 
B)  Negatively skewed 
C)  Symmetric 
D)  Uniformly distributed

Question 20

The interquartile range is graphically presented in a ___________.

Accepted Answer

A)  Dot plot 
B)  Stem-and-leaf display 
C)  Box plot 
D)  Contingency table 
A)  Dot plot 
B)  Stem-and-leaf display 
C)  Box plot 
D)  Contingency table

A dot plot can be used to show _________________.

A dot plot is useful for showing individual observations.

A telemarketing firm is monitoring the performance of its employees based on the number of sales per hour. One employee had the following sales for the last 19 hours. For the distribution of number of sales per hour, 50% are equal or greater than ___________.

The coefficient of skewness measures a distribution's ____________ symmetry.

Percentiles divide a distribution into 100 equal parts.

In a stem-and-leaf display, the leaf represents the members of a class in a frequency distribution.

The following graph is a:

The eighth decile:

A stem-and-leaf display includes the following row: 3 | 0 1 3 5 7 9. Assume that the data is rounded to the nearest whole number. Which of the following statements is true?

Which of the following is not a measure of dispersion?

In a distribution, the second quartile corresponds with the __________.

A ___________ uses dots to show frequencies.

The ______________ is used to measure the relative symmetry of a distribution.

In the following table,

The following graph is a ___________.

The following table is a:

Outliers are clearly presented in a _____________.

A stem-and-leaf diagram shows the actual data values.

The following graph is _______________.

The interquartile range is graphically presented in a ___________.

What Is Statistics

Describing Data: Frequency Tables, Frequency Distributions, and Graphic Presentation

Describing Data: Numerical Measures

A Survey of Probability Concepts

Discrete Probability Distributions

Continuous Probability Distributions

Sampling Methods and the Central Limit Theorem

Estimation and Confidence Intervals

One-Sample Tests of Hypothesis

Two-Sample Tests of Hypothesis

Analysis of Variance

Correlation and Linear Regression

Multiple Regression Analysis

Nonparametric Methods: Nominal Level Hypothesis Tests

Nonparametric Methods: Analysis of Ordinal Data

Index Numbers

Time Series and Forecasting

Statistical Process Control and Quality Management

An Introduction to Decision Theory

Filters

Exam 4: Describing Data: Displaying and Exploring Data

A dot plot can be used to show _________________.

A dot plot is useful for showing individual observations.

A telemarketing firm is monitoring the performance of its employees based on the number of sales per hour. One employee had the following sales for the last 19 hours. For the distribution of number of sales per hour, 50% are equal or greater than ___________.

The coefficient of skewness measures a distribution's ____________ symmetry.

Percentiles divide a distribution into 100 equal parts.

In a stem-and-leaf display, the leaf represents the members of a class in a frequency distribution.

The following graph is a:

The eighth decile:

A stem-and-leaf display includes the following row: 3 | 0 1 3 5 7 9. Assume that the data is rounded to the nearest whole number. Which of the following statements is true?

Which of the following is not a measure of dispersion?

In a distribution, the second quartile corresponds with the __________.

A ___________ uses dots to show frequencies.

The ______________ is used to measure the relative symmetry of a distribution.

In the following table,

The following graph is a ___________.

The following table is a:

Outliers are clearly presented in a _____________.

A stem-and-leaf diagram shows the actual data values.

The following graph is _______________.

The interquartile range is graphically presented in a ___________.

What Is Statistics

Describing Data: Frequency Tables, Frequency Distributions, and Graphic Presentation

Describing Data: Numerical Measures

A Survey of Probability Concepts

Discrete Probability Distributions

Continuous Probability Distributions

Sampling Methods and the Central Limit Theorem

Estimation and Confidence Intervals

One-Sample Tests of Hypothesis

Two-Sample Tests of Hypothesis

Analysis of Variance

Correlation and Linear Regression

Multiple Regression Analysis

Nonparametric Methods: Nominal Level Hypothesis Tests

Nonparametric Methods: Analysis of Ordinal Data

Index Numbers

Time Series and Forecasting

Statistical Process Control and Quality Management

An Introduction to Decision Theory

Filters