Question 1

With nominal data, there is one and only one way the possible values can be ordered.

Accepted Answer

A) True 
 B)False

Question 2

Internet Classes: A survey of 25 students was conducted to determine how they rate the quality of Internet classes. Students were asked to rate the overall quality from 0 (no quality at all) to 100 (extremely good quality). The stem-and-leaf display of the data is shown below.
  
-What percentage of the students rated the overall quality of Internet classes as being 70 or above?

Accepted Answer

The answer of Internet Classes: A survey of 25 students...

Question 3

One of the advantages of a pie chart is that it clearly shows that the total percentages of all the categories add to 100%.

Accepted Answer

A) True 
 B)False

Question 4

Which of the following is the method statisticians use to draw the best fitting straight line through the data on a scatter diagram?

Accepted Answer

A)  The fit best method. 
B)  The least squares method. 
C)  The point-intercept method. 
D)  None of these choices. 
A)  The fit best method. 
B)  The least squares method. 
C)  The point-intercept method. 
D)  None of these choices.

Question 5

The sum of cumulative relative frequencies always equals 1.

Accepted Answer

A) True 
 B)False

Question 6

A(n) ____________________ is a table that sorts data into class intervals (categories) and gives the number of observations in each interval (category).

Accepted Answer

frequency

Question 7

The Dean of Students conducted a survey on campus. Class rank (Freshman, Sophomore, Junior, and Senior) is an example of a(n) ____________________ variable.

Accepted Answer

The answer of The Dean of Students conducted a survey...

Question 8

-The line chart below shows tomato prices each month from January (month 1) to December last year ($ per pound). By looking at this chart you can see the lowest tomato prices occurred in July.

Accepted Answer

A) True 
 B)False

Question 9

Compare the two histograms below. Which statement is true?

Accepted Answer

A)  The shape of histogram A is the same as the shape of histogram B. 
B)  The shape of histogram A is positively skewed compared to histogram B. 
C)  The shape of histogram A is negatively skewed compared to histogram B. 
D)  You cannot compare the shapes of these two histograms without the original data. 
A)  The shape of histogram A is the same as the shape of histogram B. 
B)  The shape of histogram A is positively skewed compared to histogram B. 
C)  The shape of histogram A is negatively skewed compared to histogram B. 
D)  You cannot compare the shapes of these two histograms without the original data.

Question 10

Which of the following statements about histograms is false?

Accepted Answer

A)  The intervals of a histogram do not overlap. 
B)  Every observation is assigned to one and only one class in a histogram. 
C)  The intervals of a histogram are equally wide. 
D)  None of these choices. 
A)  The intervals of a histogram do not overlap. 
B)  Every observation is assigned to one and only one class in a histogram. 
C)  The intervals of a histogram are equally wide. 
D)  None of these choices.

Question 11

A histogram is said to be symmetric if, when we draw a vertical line down the center of the histogram the two sides are nearly identical.

Accepted Answer

A) True 
 B)False

Question 12

Two types of graphs that organize nominal data are ____________________ and ____________________.

Accepted Answer

pie charts

Question 13

Test Grades: The scores on a calculus test for a random sample of 40 students are as follows:
  
-Describe the distribution of exam scores.

Accepted Answer

The distribution of the data i

Question 14

Briefly discuss the difference between cross-sectional data and time-series data.

Accepted Answer

Data can be classified according to whet

Question 15

Electronics Company: At a meeting of regional offices managers of a national electronics company, a survey was taken to determine the number of employees the regional managers supervise in the operation of their departments. The results of the survey are shown below.
  
-What is the cumulative relative frequency corresponding to 5 employees?

Accepted Answer

This is the total pr

Question 16

According to the stem-and-leaf plot below, this data set has a negative median.

Accepted Answer

A) True 
 B)False

Question 17

The Dean of Students conducted a survey on campus. The gender of each student is an example of a(n) ____________________ variable.

Accepted Answer

nominal
ca

Question 18

When a distribution has more values to the right and tails to the left, we say it is skewed negatively.

Accepted Answer

A) True 
 B)False

Question 19

The advantage of a stem-and-leaf display over a histogram is that we can see the actual observations.

Accepted Answer

A) True 
 B)False

Question 20

The relationship between two interval variables is graphically displayed by a

Accepted Answer

A)  scatter diagram 
B)  histogram 
C)  bar chart 
D)  pie chart 
A)  scatter diagram 
B)  histogram 
C)  bar chart 
D)  pie chart

With nominal data, there is one and only one way the possible values can be ordered.

One of the advantages of a pie chart is that it clearly shows that the total percentages of all the categories add to 100%.

Which of the following is the method statisticians use to draw the best fitting straight line through the data on a scatter diagram?

The sum of cumulative relative frequencies always equals 1.

A(n) ____________________ is a table that sorts data into class intervals (categories) and gives the number of observations in each interval (category).

The Dean of Students conducted a survey on campus. Class rank (Freshman, Sophomore, Junior, and Senior) is an example of a(n) ____________________ variable.

-The line chart below shows tomato prices each month from January (month 1) to December last year ($ per pound). By looking at this chart you can see the lowest tomato prices occurred in July.

Compare the two histograms below. Which statement is true?

Which of the following statements about histograms is false?

A histogram is said to be symmetric if, when we draw a vertical line down the center of the histogram the two sides are nearly identical.

Two types of graphs that organize nominal data are and .

Test Grades: The scores on a calculus test for a random sample of 40 students are as follows: -Describe the distribution of exam scores.

Briefly discuss the difference between cross-sectional data and time-series data.

According to the stem-and-leaf plot below, this data set has a negative median.

The Dean of Students conducted a survey on campus. The gender of each student is an example of a(n) ____________________ variable.

When a distribution has more values to the right and tails to the left, we say it is skewed negatively.

The advantage of a stem-and-leaf display over a histogram is that we can see the actual observations.

The relationship between two interval variables is graphically displayed by a

What Is Statistics

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, Part 1

Inference About Comparing Two Populations, Part 2

Analysis of Variance

Chi-Squared Tests

Simple Linear Regression and Correlation

Multiple Regression

Review of Statistical Inference

Filters

Exam 2: Graphical and Tabular Descriptive Techniques

With nominal data, there is one and only one way the possible values can be ordered.

One of the advantages of a pie chart is that it clearly shows that the total percentages of all the categories add to 100%.

Which of the following is the method statisticians use to draw the best fitting straight line through the data on a scatter diagram?

The sum of cumulative relative frequencies always equals 1.

A(n) ____________________ is a table that sorts data into class intervals (categories) and gives the number of observations in each interval (category).

The Dean of Students conducted a survey on campus. Class rank (Freshman, Sophomore, Junior, and Senior) is an example of a(n) ____________________ variable.

-The line chart below shows tomato prices each month from January (month 1) to December last year ($ per pound). By looking at this chart you can see the lowest tomato prices occurred in July.

Compare the two histograms below. Which statement is true?

Which of the following statements about histograms is false?

A histogram is said to be symmetric if, when we draw a vertical line down the center of the histogram the two sides are nearly identical.

Two types of graphs that organize nominal data are ____________________ and ____________________.

Test Grades: The scores on a calculus test for a random sample of 40 students are as follows: -Describe the distribution of exam scores.

Briefly discuss the difference between cross-sectional data and time-series data.

According to the stem-and-leaf plot below, this data set has a negative median.

The Dean of Students conducted a survey on campus. The gender of each student is an example of a(n) ____________________ variable.

When a distribution has more values to the right and tails to the left, we say it is skewed negatively.

The advantage of a stem-and-leaf display over a histogram is that we can see the actual observations.

The relationship between two interval variables is graphically displayed by a

What Is Statistics

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, Part 1

Inference About Comparing Two Populations, Part 2

Analysis of Variance

Chi-Squared Tests

Simple Linear Regression and Correlation

Multiple Regression

Review of Statistical Inference

Filters

Two types of graphs that organize nominal data are and .