\[\begin{array}{l} \text { Use the given frequency distribution to approximate the mean. }\\ \begin{array} { c c } \hline \text { Class } & \text { Frequency } \\ \hline 0 - 9 & 18 \\ 10 - 19 & 18 \\ 20 - 29 & 9 \\ 30 - 39 & 9 \\ 40 - 49 & 9 \end{array} \end{array}\]

A) 12.6 B) 14 C) 14.1 D) 20.7 A) 12.6 B) 14 C) 14.1 D) 20.7

The table below lists the populations, in thousands, of several rural western counties. Wh: median population? $\begin{array}{cc} \hline \text { County } & \text { Population (thousands) } \\ \hline \text { Aldridge } & 27 \\ \text { Cleveland } & 25 \\ \text { McCarthy } & 24 \\ \text { Pope } & 11 \\ \text { Sorrell } & 15 \\ \text { Wilson } & 19 \end{array}$ is the

A) 16 thousand B) 20.2 thousand C) 19 thousand D) 21.5 thousand A) 16 thousand B) 20.2 thousand C) 19 thousand D) 21.5 thousand

\[\begin{array}{l} \text { For the data set below, find the IQR. }\\ \begin{array} { l l l l l l l l l l l } \hline 65 & 74 & 74 & 68 & 66 & 73 & 63 & 72 & 62 & 75 & 75 \\ \hline \end{array} \end{array}\]

A) 9 B) 65 C) 74 D) 13 A) 9 B) 65 C) 74 D) 13

The following data represent the total price, in dollars, of 20 randomly-selected gasoline purchases at a certain convenience store. $\begin{array}{llllllllll} \hline 31.87 & 41.83 & 24.81 & 29.28 & 46.20 & 37.55 & 32.13 & 33.27 & 49.22 & 30.25 \\ 40.76 & 38.68 & 25.97 & 23.11 & 31.59 & 41.16 & 47.31 & 43.15 & 37.85 & 47.33 \\ \hline \end{array}$ Find the median price for these purchases.

A) $37.70 B) $26.11 C) $60.14 D) $36.67 A) $37.70 B) $26.11 C) $60.14 D) $36.67

Indicate which student has the higher $z$ score. $\begin{array} { l l l l } \text { Art Major } & X = 46 & \bar { X } = 50.5 & s = 5.2 \\ \text { Theater Major } & X = 70 & \bar { X } = 75.1 & s = 7.3 \end{array}$

A) The theater major has a higher score than the art major. B) Neither student received a positive score; therefore, the higher score cannot be determined. C) Both students have the same score. D) The art major has a higher score than the theater major. A) The theater major has a higher score than the art major. B) Neither student received a positive score; therefore, the higher score cannot be determined. C) Both students have the same score. D) The art major has a higher score than the theater major.

Find the mode of the data in the following stem-and-leaf plot. The leaf represents the one: $\begin{array}{l|l} \hline 0 & 157 \\ 1 & 03448 \\ 2 & 68 \end{array}$ git.

A) 12.3 B) 14 C) 13.3 D) 13.8 A) 12.3 B) 14 C) 13.3 D) 13.8

Exam 3: Data Description

A soft-drink bottling company fills and ships soda in plastic bottles with a target volume of 354 milliliters. The filling machinery does not deliver a perfectly consistent volume of liquid to each bottle, and the three quartiles for the fill volume are $Q _ { 1 } = 352 , Q _ { 2 } = 356$ , and $Q _ { 3 } = 359$ A fill volume of 344 mL is considered low. Would a fill volume of 344 mL be considered an outlier?

(Multiple Choice)

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Question 41

If a set of data has 49 values with a variance of 4.4, then the standard deviation is .

(Multiple Choice)

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Question 42

A data set has a median of 76 , and eighteen of the numbers in the data set are less than median. The data set contains a total of $n$ numbers. If $n$ is even, and none of the numbers in the data set is equal to 76 , what is the value of

(Multiple Choice)

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Question 43

The variance of a data set is the square root of the standard deviation.

(True/False)

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Question 44

Use the given frequency distribution to approximate the mean. Class Frequency 0-9 18 10-19 18 20-29 9 30-39 9 40-49 9

(Multiple Choice)

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Question 45

A data set contains three unique values. Which of the following must be true?

(Multiple Choice)

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Question 46

The table below lists the populations, in thousands, of several rural western counties. Wh: median population? County Population (thousands) Aldridge 27 Cleveland 25 McCarthy 24 Pope 11 Sorrell 15 Wilson 19 is the

(Multiple Choice)

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Question 47

A data set has a median of 84 , and six of the numbers in the data set are less than median. The data set contains a total of $n$ numbers. If $n$ is odd, and exactly one number in the data set is equal to 84 , what is the value of

(Multiple Choice)

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Question 48

The coefficient of variation for a data set is the mean divided by the standard deviation, expressed as a percentage.

(True/False)

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Question 49

Find the median for the following data set: 27 21 15 25 15

(Multiple Choice)

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Question 50

Find the sample variance for the following data set: 25 20 19 15 31

(Multiple Choice)

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Question 51

What is the median of the following data set? 6, 9, 13, 14, 18

(Multiple Choice)

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Question 52

For the data set below, find the IQR. 65 74 74 68 66 73 63 72 62 75 75

(Multiple Choice)

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Question 53

A characteristic or measure obtained by using all the data values for a specific population is called a .

(Multiple Choice)

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Question 54

A distribution in which approximately 68% of the data values fall within one standard deviation of the mean behaves according to

(Multiple Choice)

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Question 55

The following data represent the total price, in dollars, of 20 randomly-selected gasoline purchases at a certain convenience store. 31.87 41.83 24.81 29.28 46.20 37.55 32.13 33.27 49.22 30.25 40.76 38.68 25.97 23.11 31.59 41.16 47.31 43.15 37.85 47.33 Find the median price for these purchases.

(Multiple Choice)

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Question 56

If a data set has 16 values and a standard deviation 9.4, then the variance is

(Multiple Choice)

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Question 57

Indicate which student has the higher $z$ score. Art Major X=46 =50.5 s=5.2 Theater Major X=70 =75.1 s=7.3

(Multiple Choice)

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Question 58

Find the mode of the data in the following stem-and-leaf plot. The leaf represents the one: 0 157 1 03448 2 68 git.

(Multiple Choice)

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Question 59

Find the mean of the data in the following stem-and-leaf plot. The leaf represents the ones digit. 1 223 2 34888 3 7 4 1

(Multiple Choice)

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Question 60

If a set of data has 49 values with a variance of 4.4, then the standard deviation is .

A data set has a median of 76 , and eighteen of the numbers in the data set are less than median. The data set contains a total of $n$ numbers. If $n$ is even, and none of the numbers in the data set is equal to 76 , what is the value of

The variance of a data set is the square root of the standard deviation.

Use the given frequency distribution to approximate the mean. Class Frequency 0-9 18 10-19 18 20-29 9 30-39 9 40-49 9

A data set contains three unique values. Which of the following must be true?

The table below lists the populations, in thousands, of several rural western counties. Wh: median population? County Population (thousands) Aldridge 27 Cleveland 25 McCarthy 24 Pope 11 Sorrell 15 Wilson 19 is the

A data set has a median of 84 , and six of the numbers in the data set are less than median. The data set contains a total of $n$ numbers. If $n$ is odd, and exactly one number in the data set is equal to 84 , what is the value of

The coefficient of variation for a data set is the mean divided by the standard deviation, expressed as a percentage.

Find the median for the following data set: 27 21 15 25 15

Find the sample variance for the following data set: 25 20 19 15 31

What is the median of the following data set? 6, 9, 13, 14, 18

For the data set below, find the IQR. 65 74 74 68 66 73 63 72 62 75 75

A characteristic or measure obtained by using all the data values for a specific population is called a .

A distribution in which approximately 68% of the data values fall within one standard deviation of the mean behaves according to

The following data represent the total price, in dollars, of 20 randomly-selected gasoline purchases at a certain convenience store. 31.87 41.83 24.81 29.28 46.20 37.55 32.13 33.27 49.22 30.25 40.76 38.68 25.97 23.11 31.59 41.16 47.31 43.15 37.85 47.33 Find the median price for these purchases.

If a data set has 16 values and a standard deviation 9.4, then the variance is

Indicate which student has the higher $z$ score. Art Major X=46 =50.5 s=5.2 Theater Major X=70 =75.1 s=7.3

Find the mode of the data in the following stem-and-leaf plot. The leaf represents the one: 0 157 1 03448 2 68 git.

Find the mean of the data in the following stem-and-leaf plot. The leaf represents the ones digit. 1 223 2 34888 3 7 4 1

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

If a set of data has 49 values with a variance of 4.4, then the standard deviation is .

A data set has a median of 76 , and eighteen of the numbers in the data set are less than median. The data set contains a total of nnn numbers. If nnn is even, and none of the numbers in the data set is equal to 76 , what is the value of

The variance of a data set is the square root of the standard deviation.

Use the given frequency distribution to approximate the mean. Class Frequency 0-9 18 10-19 18 20-29 9 30-39 9 40-49 9

A data set contains three unique values. Which of the following must be true?

The table below lists the populations, in thousands, of several rural western counties. Wh: median population? County Population (thousands) Aldridge 27 Cleveland 25 McCarthy 24 Pope 11 Sorrell 15 Wilson 19 is the

A data set has a median of 84 , and six of the numbers in the data set are less than median. The data set contains a total of nnn numbers. If nnn is odd, and exactly one number in the data set is equal to 84 , what is the value of

The coefficient of variation for a data set is the mean divided by the standard deviation, expressed as a percentage.

Find the median for the following data set: 27 21 15 25 15

Find the sample variance for the following data set: 25 20 19 15 31

What is the median of the following data set? 6, 9, 13, 14, 18

For the data set below, find the IQR. 65 74 74 68 66 73 63 72 62 75 75

A characteristic or measure obtained by using all the data values for a specific population is called a .

A distribution in which approximately 68% of the data values fall within one standard deviation of the mean behaves according to

The following data represent the total price, in dollars, of 20 randomly-selected gasoline purchases at a certain convenience store. 31.87 41.83 24.81 29.28 46.20 37.55 32.13 33.27 49.22 30.25 40.76 38.68 25.97 23.11 31.59 41.16 47.31 43.15 37.85 47.33 Find the median price for these purchases.

If a data set has 16 values and a standard deviation 9.4, then the variance is

Indicate which student has the higher zzz score. Art Major X=46 =50.5 s=5.2 Theater Major X=70 =75.1 s=7.3

Find the mode of the data in the following stem-and-leaf plot. The leaf represents the one: 0 157 1 03448 2 68 git.

Find the mean of the data in the following stem-and-leaf plot. The leaf represents the ones digit. 1 223 2 34888 3 7 4 1

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

A data set has a median of 76 , and eighteen of the numbers in the data set are less than median. The data set contains a total of $n$ numbers. If $n$ is even, and none of the numbers in the data set is equal to 76 , what is the value of

A data set has a median of 84 , and six of the numbers in the data set are less than median. The data set contains a total of $n$ numbers. If $n$ is odd, and exactly one number in the data set is equal to 84 , what is the value of

Indicate which student has the higher $z$ score. Art Major X=46 =50.5 s=5.2 Theater Major X=70 =75.1 s=7.3