Question 1

A dot plot is useful for quickly graphing frequencies in a small data set.

Accepted Answer

A) True 
 B)False

Question 2

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 3

What does the interquartile range describe?

Accepted Answer

A)  The lower 50% of the observations 
B)  The middle 50% of the observations 
C)  The upper 50% of the observations 
D)  The lower 25% and the upper 25% of the observations 
A)  The lower 50% of the observations 
B)  The middle 50% of the observations 
C)  The upper 50% of the observations 
D)  The lower 25% and the upper 25% of the observations

Question 4

For the following data, are any of the observations an outlier?

Accepted Answer

The answer of For the following data, are any of...

Question 5

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 6

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 7

What statistic can be used to measure the relative symmetry of a distribution? ___________________________________

Accepted Answer

Coefficien

Question 8

A relationship between gender and preference for Coke or Pepsi can be best represented by a scatter diagram.

Accepted Answer

A) True 
 B)False

Question 9

A dot plot is useful for showing possible outliers.

Accepted Answer

A) True 
 B)False

Question 10

A student scored in the 85th percentile on a standardized test. This means that the student scored lower than 85% of all students who took the test.

Accepted Answer

A) True 
 B)False

Question 11

The interquartile range is the distance between ___________.

Accepted Answer

the first

Question 12

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

Accepted Answer

A) True 
 B)False

Question 13

Percentiles 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 14

In a positively skewed distribution, the 50th percentile is the same as the _______________.

Accepted Answer

Question 15

To locate the percentile for a given observation in a data set, the data must be

Accepted Answer

A)  Sorted and listed from the minimum to the maximum values. 
B)  Displayed in a histogram. 
C)  Summarized in a cumulative frequency distribution. 
D)  Distributed symmetrically around the mean. 
A)  Sorted and listed from the minimum to the maximum values. 
B)  Displayed in a histogram. 
C)  Summarized in a cumulative frequency distribution. 
D)  Distributed symmetrically around the mean.

Question 16

What chart or graph uses dots to show frequencies? ________________

Accepted Answer

The answer of What chart or graph uses dots to...

Question 17

A dot plot is best applied for a data set with

Accepted Answer

A)  1,000 observations. 
B)  50 observations. 
C)  More than one variable. 
D)  A one mode. 
A)  1,000 observations. 
B)  50 observations. 
C)  More than one variable. 
D)  A one mode.

Question 18

For the following data, how many observations are in the data?

Accepted Answer

The answer of For the following data, how many observations...

Question 19

The "box" in a box plot shows the interquartile range.

Accepted Answer

A) True 
 B)False

Question 20

What is the value of the Pearson coefficient of skewness for a distribution with a mean of 17, median of 12 and standard deviation of 6?

Accepted Answer

A)  +2.5 
B)  -2.5 
C)  +0.83 
D)  -0.83 
A)  +2.5 
B)  -2.5 
C)  +0.83 
D)  -0.83

A dot plot is useful for quickly graphing frequencies in a small data set.

The following graph is a

What does the interquartile range describe?

For the following data, are any of the observations an outlier?

In a distribution, the second quartile corresponds with the

Quartiles divide a distribution into

What statistic can be used to measure the relative symmetry of a distribution? ___________________________________

A relationship between gender and preference for Coke or Pepsi can be best represented by a scatter diagram.

A dot plot is useful for showing possible outliers.

A student scored in the 85^th percentile on a standardized test. This means that the student scored lower than 85% of all students who took the test.

The interquartile range is the distance between ___________.

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

Percentiles divide a distribution into

In a positively skewed distribution, the 50^th percentile is the same as the _______________.

To locate the percentile for a given observation in a data set, the data must be

What chart or graph uses dots to show frequencies? ________________

A dot plot is best applied for a data set with

For the following data, how many observations are in the data?

The "box" in a box plot shows the interquartile range.

What is the value of the Pearson coefficient of skewness for a distribution with a mean of 17, median of 12 and standard deviation of 6?

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

Index Numbers

Time Series and Forecasting

Nonparametric Methods: Goodness-Of-Fit Tests

Nonparametric Methods: Analysis of Ranked Data

Statistical Process Control and Quality Management

An Introduction to Decision Theory

Filters

Exam 4: Describing Data: Displaying and Exploring Data

A dot plot is useful for quickly graphing frequencies in a small data set.

The following graph is a

What does the interquartile range describe?

For the following data, are any of the observations an outlier?

In a distribution, the second quartile corresponds with the

Quartiles divide a distribution into

What statistic can be used to measure the relative symmetry of a distribution? ___________________________________

A relationship between gender and preference for Coke or Pepsi can be best represented by a scatter diagram.

A dot plot is useful for showing possible outliers.

A student scored in the 85th percentile on a standardized test. This means that the student scored lower than 85% of all students who took the test.

The interquartile range is the distance between ___________.

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

Percentiles divide a distribution into

In a positively skewed distribution, the 50th percentile is the same as the _______________.

To locate the percentile for a given observation in a data set, the data must be

What chart or graph uses dots to show frequencies? ________________

A dot plot is best applied for a data set with

For the following data, how many observations are in the data?

The "box" in a box plot shows the interquartile range.

What is the value of the Pearson coefficient of skewness for a distribution with a mean of 17, median of 12 and standard deviation of 6?

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

Index Numbers

Time Series and Forecasting

Nonparametric Methods: Goodness-Of-Fit Tests

Nonparametric Methods: Analysis of Ranked Data

Statistical Process Control and Quality Management

An Introduction to Decision Theory

Filters

A student scored in the 85^th percentile on a standardized test. This means that the student scored lower than 85% of all students who took the test.

In a positively skewed distribution, the 50^th percentile is the same as the _______________.