Question 1

Determine the range for the following data set. 4, 7, 3, 16, 5, 22, 8

Accepted Answer

A)  4 
B)  14 
C)  3 
D)  19 
A)  4 
B)  14 
C)  3 
D)  19

Question 2

The completion times for a certain marathon race was 3 hours with a standard deviation of $0.5$ hours. What can you determine about these data by using Chebyshev's Inequality with $K = 2$ ?

Accepted Answer

A)  At most 88.9% of the completion times are between 2 hours and 4 hours. 
B)  At least 75% of the completion times are between 2 hours and 4 hours. 
C)  At least 88.9% of the completion times are between 2 hours and 4 hours. 
D)  No more than 75% of the completion times are between 2 hours and 4 hours. 
A)  At most 88.9% of the completion times are between 2 hours and 4 hours. 
B)  At least 75% of the completion times are between 2 hours and 4 hours. 
C)  At least 88.9% of the completion times are between 2 hours and 4 hours. 
D)  No more than 75% of the completion times are between 2 hours and 4 hours.

Question 3

The and are two measures of variation
used to describe the spread of the data in a data set.

Accepted Answer

Choose two of the fo

Question 4

Which of the following is the properly rounded mean for the given data? 7, 8, 13, 9, 10, 11

Accepted Answer

A)  10 
B)  9.67 
C)  9 
D)  9.7 
A)  10 
B)  9.67 
C)  9 
D)  9.7

Question 5

The following population parameters were obtained from a graphing calculator.

Assuming the population is bell-shaped, approximately what percentage of the population are between 39 and 63 ? lues

Accepted Answer

A)  almost all (greater than 95%) 
B)  almost none (less than 5%) 
C)  68% 
D)  95% 
A)  almost all (greater than 95%) 
B)  almost none (less than 5%) 
C)  68% 
D)  95%

Question 6

Construct a boxplot for the data set below.
$\begin{array}{lllll}
\hline 11 & 20 & 20 & 27 & 11 \
14 & 14 & 10 & 15 & 14 \
34 & 18 & 11 & 17 & 14 \
22 & 25 & 21 & 20 & 10 \
\hline
\end{array}$

Accepted Answer

A) 
  
B) 
  
C) 
  
D) 
  
A) 
  
B) 
  
C) 
  
D)

Question 7

Given the following boxplot where $m$ is the median value, what statement could be made about the distribution of the data?

Accepted Answer

A)  The distribution is approximately symmetric. 
B)  The data are nominal and consequently can not be identified as symmetric or skewed. 
C)  The distribution is negatively skewed. 
D)  The distribution is positively skewed. 
A)  The distribution is approximately symmetric. 
B)  The data are nominal and consequently can not be identified as symmetric or skewed. 
C)  The distribution is negatively skewed. 
D)  The distribution is positively skewed.

Question 8

$$\begin{array}{l}
\text { Approximate the population standard deviation given the following frequency distributior }\
\begin{array} { c c } 
\hline \text { Class } & \text { Frequency } \
\hline 0 - 9 & 11 \
10 - 19 & 13 \
20 - 29 & 19 \
30 - 39 & 12 \
40 - 49 & 14 \
\hline
\end{array}
\end{array}$$

Accepted Answer

A)  183.3 
B)  180.6 
C)  13.4 
D)  13.5 
A)  183.3 
B)  180.6 
C)  13.4 
D)  13.5

Question 9

For which of the following histograms is it appropriate to use the Empirical Rule?

Accepted Answer

A) 
  
B) 
  
C) 
  
D)  all of these 
A) 
  
B) 
  
C) 
  
D)  all of these

Question 10

The average weekly earnings in dollars for various industries are listed below. Find the percentile rank of 683.
755, 683, 604, 706, 649, 729, 800, 547, 821, 851

Accepted Answer

A)  45th 
B)  25th 
C)  35th 
D)  40th 
A)  45th 
B)  25th 
C)  35th 
D)  40th

Question 11

Find the mean for the following data set: 13 15 21 20 22

Accepted Answer

A)  3.5 
B)  20 
C)  9 
D)  18.2 
A)  3.5 
B)  20 
C)  9 
D)  18.2

Question 12

If a distribution is negatively skewed as shown in the figure below, the mean will fall to the right of the median and the mode will fall to the left of the median.

Accepted Answer

A) True 
 B)False

Question 13

Find the median for the following data. 6, 7, 4, 5, 3, 7, 4

Accepted Answer

A)  7 
B)  3 
C)  4 
D)  5 
A)  7 
B)  3 
C)  4 
D)  5

Question 14

What is the midrange of the following data set? 5, 11, 10, 12, 4, 12, 18, 18, 18

Accepted Answer

A)  12 
B)  18 
C)  5 
D)  11 
A)  12 
B)  18 
C)  5 
D)  11

Question 15

Find the mean for the following data set: 25 24 21 13 14 15

Accepted Answer

A)  12 
B)  18 
C)  18.7 
D)  4.9 
A)  12 
B)  18 
C)  18.7 
D)  4.9

Question 16

$$\begin{array}{l}
\text { For the data set below, find the third quartile. }\
\begin{array} { l l l l l l l l l l l } 
\hline 72 & 72 & 67 & 68 & 75 & 73 & 73 & 70 & 65 & 79 & 79 \
\hline
\end{array}
\end{array}$$

Accepted Answer

A)  57.5 
B)  75 
C)  68 
D)  65 
A)  57.5 
B)  75 
C)  68 
D)  65

Question 17

Construct a boxplot for the data set below.
$\begin{array}{lllll}
\hline 94 & 96 & 89 & 90 & 90 \
89 & 88 & 85 & 85 & 88 \
92 & 91 & 91 & 90 & 90 \
90 & 93 & 89 & 82 & 84 \
\hline
\end{array}$

Accepted Answer

A) 
  
B) 
  
C) 
  
D) 
  
A) 
  
B) 
  
C) 
  
D)

Question 18

Find the mode for the following data set: 10 30 10 36 26 22

Accepted Answer

A)  10 
B)  26 
C)  22.3 
D)  24 
A)  10 
B)  26 
C)  22.3 
D)  24

Question 19

Which of the following is true?

Accepted Answer

A)  $D _ { 5 } = P _ { 50 } = Q _ { 2 }$ 
B)  $D _ { 50 } = P _ { 5 } = Q _ { 2 }$ 
C)  $D _ { 50 } = P _ { 5 } = Q _ { 25 }$ 
D)  $D _ { 5 } = P _ { 5 } = Q _ { 5 }$ 
A)  $D _ { 5 } = P _ { 50 } = Q _ { 2 }$ 
B)  $D _ { 50 } = P _ { 5 } = Q _ { 2 }$ 
C)  $D _ { 50 } = P _ { 5 } = Q _ { 25 }$ 
D)  $D _ { 5 } = P _ { 5 } = Q _ { 5 }$

Question 20

Find the median for the following data set: 25 20 24 14 10 15

Accepted Answer

A)  15 
B)  18.0 
C)  5.4 
D)  17.5 
A)  15 
B)  18.0 
C)  5.4 
D)  17.5

Determine the range for the following data set. 4, 7, 3, 16, 5, 22, 8

The completion times for a certain marathon race was 3 hours with a standard deviation of $0.5$ hours. What can you determine about these data by using Chebyshev's Inequality with $K = 2$ ?

The and are two measures of variation used to describe the spread of the data in a data set.

Which of the following is the properly rounded mean for the given data? 7, 8, 13, 9, 10, 11

The following population parameters were obtained from a graphing calculator. Assuming the population is bell-shaped, approximately what percentage of the population are between 39 and 63 ? lues

Construct a boxplot for the data set below. 11 20 20 27 11 14 14 10 15 14 34 18 11 17 14 22 25 21 20 10

Given the following boxplot where $m$ is the median value, what statement could be made about the distribution of the data?

Approximate the population standard deviation given the following frequency distributior Class Frequency 0-9 11 10-19 13 20-29 19 30-39 12 40-49 14

For which of the following histograms is it appropriate to use the Empirical Rule?

The average weekly earnings in dollars for various industries are listed below. Find the percentile rank of 683. 755, 683, 604, 706, 649, 729, 800, 547, 821, 851

Find the mean for the following data set: 13 15 21 20 22

If a distribution is negatively skewed as shown in the figure below, the mean will fall to the right of the median and the mode will fall to the left of the median.

Find the median for the following data. 6, 7, 4, 5, 3, 7, 4

What is the midrange of the following data set? 5, 11, 10, 12, 4, 12, 18, 18, 18

Find the mean for the following data set: 25 24 21 13 14 15

For the data set below, find the third quartile. 72 72 67 68 75 73 73 70 65 79 79

Construct a boxplot for the data set below. 94 96 89 90 90 89 88 85 85 88 92 91 91 90 90 90 93 89 82 84

Find the mode for the following data set: 10 30 10 36 26 22

Which of the following is true?

Find the median for the following data set: 25 20 24 14 10 15

The Nature of Probability and Statistics

Frequency Distributions and Graphs

Probability and Counting Rules

Discrete Probability Distributions

The Normal Distribution

Confidence Intervals and Sample Size

Hypothesis Testing

Testing the Difference Between Two Means, Two Variances, and Two Proportions

Correlation and Regression

Other Chi-Square Tests

Analysis of Variance

Nonparametric Statistics

Sampling and Simulation

Filters

Exam 3: Data Description

Determine the range for the following data set. 4, 7, 3, 16, 5, 22, 8

The completion times for a certain marathon race was 3 hours with a standard deviation of 0.50.50.5 hours. What can you determine about these data by using Chebyshev's Inequality with K=2K = 2K=2 ?

The and are two measures of variation used to describe the spread of the data in a data set.

Which of the following is the properly rounded mean for the given data? 7, 8, 13, 9, 10, 11

The following population parameters were obtained from a graphing calculator. Assuming the population is bell-shaped, approximately what percentage of the population are between 39 and 63 ? lues

Construct a boxplot for the data set below. 11 20 20 27 11 14 14 10 15 14 34 18 11 17 14 22 25 21 20 10

Given the following boxplot where mmm is the median value, what statement could be made about the distribution of the data?

Approximate the population standard deviation given the following frequency distributior Class Frequency 0-9 11 10-19 13 20-29 19 30-39 12 40-49 14

For which of the following histograms is it appropriate to use the Empirical Rule?

The average weekly earnings in dollars for various industries are listed below. Find the percentile rank of 683. 755, 683, 604, 706, 649, 729, 800, 547, 821, 851

Find the mean for the following data set: 13 15 21 20 22

If a distribution is negatively skewed as shown in the figure below, the mean will fall to the right of the median and the mode will fall to the left of the median.

Find the median for the following data. 6, 7, 4, 5, 3, 7, 4

What is the midrange of the following data set? 5, 11, 10, 12, 4, 12, 18, 18, 18

Find the mean for the following data set: 25 24 21 13 14 15

For the data set below, find the third quartile. 72 72 67 68 75 73 73 70 65 79 79

Construct a boxplot for the data set below. 94 96 89 90 90 89 88 85 85 88 92 91 91 90 90 90 93 89 82 84

Find the mode for the following data set: 10 30 10 36 26 22

Which of the following is true?

Find the median for the following data set: 25 20 24 14 10 15

The Nature of Probability and Statistics

Frequency Distributions and Graphs

Probability and Counting Rules

Discrete Probability Distributions

The Normal Distribution

Confidence Intervals and Sample Size

Hypothesis Testing

Testing the Difference Between Two Means, Two Variances, and Two Proportions

Correlation and Regression

Other Chi-Square Tests

Analysis of Variance

Nonparametric Statistics

Sampling and Simulation

Filters

The completion times for a certain marathon race was 3 hours with a standard deviation of $0.5$ hours. What can you determine about these data by using Chebyshev's Inequality with $K = 2$ ?

Given the following boxplot where $m$ is the median value, what statement could be made about the distribution of the data?