Question 1

The 50th percentile of a distribution is the same as the distribution mean.

Accepted Answer

A) True 
 B)False  False

Question 2

Using the following statistics to describe a distribution of data, what is the interquartile range? Minimum = 10
Q1 = 25
Median = 50
Q3 = 75
Maximum = 95

Accepted Answer

A) 85 
B) 50 
C) 15 
D) 20 
A) 85 
B) 50 
C) 15 
D) 20 B

Question 3

Percentiles divide a distribution into 100 equal parts.

Accepted Answer

A) True 
 B)False  True

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

A large oil company is studying the number of gallons of gasoline purchased per customer at self-service pumps. The mean number of gallons is 10.0, with a standard deviation of 3.0 gallons. The median is 10.75 gallons. What is Pearson's coefficient of skewness in this instance?

Accepted Answer

A) -1.00 
B) -0.75 
C) +0.75 
D) +1.00 
A) -1.00 
B) -0.75 
C) +0.75 
D) +1.00

Question 6

In the following set of data:   what are the first, second, and third quartiles?

Accepted Answer

A) 1, 6, and 100 
B) 3, 5, and 9 
C) 3, 6, and 9 
D) 1, 5, and 100 
A) 1, 6, and 100 
B) 3, 5, and 9 
C) 3, 6, and 9 
D) 1, 5, and 100

Question 7

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

Question 8

The following graph is a ____________.

Accepted Answer

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

Question 9

A dot plot is an easy way to represent the relationship between two variables.

Accepted Answer

A) True 
 B)False

Question 10

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 11

A ___________ uses dots to show frequencies.

Accepted Answer

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

Question 12

A dot plot is best applied when _____________________.

Accepted Answer

A) The mean, median, and mode are equal 
B) The general shape of a distribution is symmetric 
C) The relationship between two variables is summarized 
D) A single variable is summarized 
A) The mean, median, and mode are equal 
B) The general shape of a distribution is symmetric 
C) The relationship between two variables is summarized 
D) A single variable is summarized

Question 13

The _____________ unit of measurement is used to express the coefficient of skewness.

Accepted Answer

The answer of The _____________ unit of measurement is used...

Question 14

Draw a negatively or positively skewed distribution and show the relative locations of the mean, median, and mode.

Accepted Answer

See the text for ill

Question 15

Quartiles divide a distribution into ___________.

Accepted Answer

A) 2 equal parts 
B) 4 equal parts 
C) 10 equal parts 
D) 100 equal parts 
A) 2 equal parts 
B) 4 equal parts 
C) 10 equal parts 
D) 100 equal parts

Question 16

For the following data, find the information required to construct a box plot.

Accepted Answer

Minimum = 1; 1^st quart

Question 17

The types of variables called _______________ are summarized in a contingency table.

Accepted Answer

Nominal or

Question 18

What is the common purpose of a scatter diagram and a contingency table?

Accepted Answer

Both are u

Question 19

A contingency table would be used to summarize data such as ________.

Accepted Answer

A) Company employees by gender and organizational title 
B) Company employees by gender and age 
C) Company employees by compensation and age 
D) Company employees by compensation and years with the company 
A) Company employees by gender and organizational title 
B) Company employees by gender and age 
C) Company employees by compensation and age 
D) Company employees by compensation and years with the company

Question 20

Community Hospital collected data on the length of time that patients stayed in the intensive care ward. The mean time was 28 days, the median 25 days, and the modal time 23 days. The standard deviation was computed to be 4.2 days. What is Pearson's coefficient of skewness in this instance?

Accepted Answer

The answer of Community Hospital collected data on the length...

The 50^th percentile of a distribution is the same as the distribution mean.

Using the following statistics to describe a distribution of data, what is the interquartile range? Minimum = 10 Q1 = 25 Median = 50 Q3 = 75 Maximum = 95

Percentiles divide a distribution into 100 equal parts.

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

A large oil company is studying the number of gallons of gasoline purchased per customer at self-service pumps. The mean number of gallons is 10.0, with a standard deviation of 3.0 gallons. The median is 10.75 gallons. What is Pearson's coefficient of skewness in this instance?

In the following set of data: what are the first, second, and third quartiles?

The interquartile range is graphically presented in a ___________.

The following graph is a ____________.

A dot plot is an easy way to represent the relationship between two variables.

The following graph is a ___________.

A ___________ uses dots to show frequencies.

A dot plot is best applied when _____________________.

The _____________ unit of measurement is used to express the coefficient of skewness.

Draw a negatively or positively skewed distribution and show the relative locations of the mean, median, and mode.

Quartiles divide a distribution into ___________.

For the following data, find the information required to construct a box plot.

The types of variables called _______________ are summarized in a contingency table.

What is the common purpose of a scatter diagram and a contingency table?

A contingency table would be used to summarize data such as ________.

Community Hospital collected data on the length of time that patients stayed in the intensive care ward. The mean time was 28 days, the median 25 days, and the modal time 23 days. The standard deviation was computed to be 4.2 days. What is Pearson's coefficient of skewness in this instance?

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: Goodness-Of-Fit Tests

Filters

Exam 4: Describing Data: Displaying and Exploring Data

The 50th percentile of a distribution is the same as the distribution mean.

Using the following statistics to describe a distribution of data, what is the interquartile range? Minimum = 10 Q1 = 25 Median = 50 Q3 = 75 Maximum = 95

Percentiles divide a distribution into 100 equal parts.

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

A large oil company is studying the number of gallons of gasoline purchased per customer at self-service pumps. The mean number of gallons is 10.0, with a standard deviation of 3.0 gallons. The median is 10.75 gallons. What is Pearson's coefficient of skewness in this instance?

In the following set of data: what are the first, second, and third quartiles?

The interquartile range is graphically presented in a ___________.

The following graph is a ____________.

A dot plot is an easy way to represent the relationship between two variables.

The following graph is a ___________.

A ___________ uses dots to show frequencies.

A dot plot is best applied when _____________________.

The _____________ unit of measurement is used to express the coefficient of skewness.

Draw a negatively or positively skewed distribution and show the relative locations of the mean, median, and mode.

Quartiles divide a distribution into ___________.

For the following data, find the information required to construct a box plot.

The types of variables called _______________ are summarized in a contingency table.

What is the common purpose of a scatter diagram and a contingency table?

A contingency table would be used to summarize data such as ________.

Community Hospital collected data on the length of time that patients stayed in the intensive care ward. The mean time was 28 days, the median 25 days, and the modal time 23 days. The standard deviation was computed to be 4.2 days. What is Pearson's coefficient of skewness in this instance?

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: Goodness-Of-Fit Tests

Filters

The 50^th percentile of a distribution is the same as the distribution mean.