The following frequency distribution analyzes the scores on a math test. Find the class midpoint of scores interval 95-99. \[\begin{array} { c c } \hline \text { Scores } & \text { Number of students } \\ \hline 40 - 59 & 2 \\ 60 - 75 & 4 \\ 76 - 82 & 6 \\ 83 - 94 & 15 \\ 95 - 99 & 5 \\ \hline \end{array}\]

A) 96.5 B) 98.0 C) 97.0 D) 97.5 A) 96.5 B) 98.0 C) 97.0 D) 97.5

The following frequency distribution analyzes the scores on a math test. Find the class boundaries of scores interval 40-59. \[\begin{array} { c c } \hline \text { Scores } & \text { Number of students } \\ \hline 40 - 59 & 2 \\ 60 - 75 & 4 \\ 76 - 82 & 6 \\ 83 - 94 & 15 \\ 95 - 99 & 5 \\ \hline \end{array}\]

A) 39.5, 59.5 B) 39.5, 58.5 C) 40.5, 59.5 D) 40.5, 58.5 A) 39.5, 59.5 B) 39.5, 58.5 C) 40.5, 59.5 D) 40.5, 58.5

The following frequency distribution analyzes the scores on a math test. Find the class boundaries of scores interval 95-99. \[\begin{array} { c c } \hline \text { Scores } & \text { Number of students } \\ \hline 40 - 59 & 2 \\ 60 - 75 & 4 \\ 76 - 82 & 6 \\ 83 - 94 & 15 \\ 95 - 99 & 5 \\ \hline \end{array}\]

A) 94.5, 99.5 B) 94.5, 100.5 C) 95.5, 100.5 D) 95.5, 99.5 A) 94.5, 99.5 B) 94.5, 100.5 C) 95.5, 100.5 D) 95.5, 99.5

A manufacturer records the number of errors each work station makes during the week. The data are as follows. $\begin{array}{lllllllllllll} 6 & 3 & 2 & 3 & 5 & 2 & 0 & 2 & 5 & 4 & 2 & 0 & 1 \end{array}$ $\text { Which of these choices display the correct dotplot? }$

A) Number of Errors for the Week for Workstations B) Number of Errors for the Week for Workstations C) Number of Errors for the Week for Workstations D) Number of Errors for the Week for Workstations A) Number of Errors for the Week for Workstations B) Number of Errors for the Week for Workstations C) Number of Errors for the Week for Workstations D) Number of Errors for the Week for Workstations

Exam 2: Exploring Data With Tables and Graphs

Solve the problem. -The Kappa Iota Sigma Fraternity polled its members on the weekend party theme. The vote was as follows: six for toga, four for hayride, eight for beer bash, and two for masquerade. Display the vote count in a Pareto chart.

(Multiple Choice)

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Question 41

The histogram below represents the number of television sets per household for a sample of U.S. households. What is the maximum number of households having the same number of television sets?

(Multiple Choice)

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Question 42

The following frequency distribution analyzes the scores on a math test. Find the class midpoint of scores interval 95-99. Scores Number of students 40-59 2 60-75 4 76-82 6 83-94 15 95-99 5

(Multiple Choice)

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Question 43

The following frequency distribution analyzes the scores on a math test. Find the class boundaries of scores interval 40-59. Scores Number of students 40-59 2 60-75 4 76-82 6 83-94 15 95-99 5

(Multiple Choice)

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Question 44

The histogram below represents the number of television sets per household for a sample of U.S. households. What is the sample size?

(Multiple Choice)

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Question 45

The ages of the 45 members of a track and field team are listed below. Which of these choices display the correct stemplot? 21 18 42 35 32 21 44 25 38 48 14 19 23 22 28 32 34 27 31 17 16 41 37 22 24 33 32 21 26 30 22 27 32 30 20 18 17 21 15 26 36 31 40 16 25

(Multiple Choice)

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Question 46

The following data set represents Heather's average monthly charges (in $) for cable TV for the past 12 months. 105 125 110 98 102 115 110 123 118 101 95 128 Construct a frequency distribution with 4 classes. Charges \ Frequency

(Essay)

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Question 47

A nurse measured the blood pressure of each person who visited her clinic. Following is a relative-frequency histogram for the systolic blood pressure readings for those people aged between 25 and 40. The blood pressure Readings were given to the nearest whole number. What class width was used to construct the relative Frequency distribution?

(Multiple Choice)

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Question 48

The following frequency distribution analyzes the scores on a math test. Find the class boundaries of scores interval 95-99. Scores Number of students 40-59 2 60-75 4 76-82 6 83-94 15 95-99 5

(Multiple Choice)

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Question 49

Use the data to create a stemplot. -The following data show the number of laps run by each participant in a marathon. 46 65 55 43 51 48 57 30 43 49 32 56

(Multiple Choice)

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Question 50

The frequency distribution below summarizes the home sale prices in the city of Summerhill for the month of June. Determine the class width, class midpoint, and the class boundaries for the class 235.0-265.9. $\begin{array} { | c | c | } \hline \text { Sale Price (in thousand \$) } & \text { Frequency } \\\hline 80.0 - 110.9 & 2 \\111.0 - 141.9 & 5 \\142.0 - 172.9 & 7 \\173.0 - 203.9 & 10 \\204.0 - 234.9 & 3 \\235.0 - 265.9 & 1 \\\hline\end{array}$

(Essay)

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Question 51

Using a strict interpretation of the relevant criteria characterizing a normal distribution,does the frequency distribution below appear to have a normal distribution? Does the distribution appear to be normal if the criteria are interpreted very loosely? Closing Share Price Frequency 0-5 2 6-10 5 11-15 15 16-20 27

(Essay)

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Question 52

x -1 -4 -3 -3 -7 4 2 9 -4 -2 y -3 -6 -4 -9 3 1 1 1 -6 -3 $\begin{array}{lllllllllll} x & -1 & -4 & -3 & -3 & -7 & 4 & 2 & 9 & -4 & -2 \\ y & -3 & -6 & -4 & -9 & 3 & 1 & 1 & 1 & -6 & -3 \end{array}$

(Multiple Choice)

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Question 53

Explain in your own words why a bar graph can be misleading if one or both of the scales begin at some value other than zero.

(Essay)

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Question 54

The weights (in pounds) of 22 members of the junior varsity football team are listed below. 144 152 142 151 160 152 131 164 141 153 140 144 175 156 147 133 172 159 135 159 148 171 Which of these choices display the correct stemplot?

(Multiple Choice)

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Question 55

A nurse measured the blood pressure of each person who visited her clinic. Following is a relative-frequency histogram for the systolic blood pressure readings for those people aged between 25 and 40 years. The blood Pressure readings were given to the nearest whole number. Approximately what percentage of the people aged 25-40 had a systolic blood pressure reading between 110 and 119 mm Hg inclusive? Systolic Blood Pressure for People Aged 25-40 Years

(Multiple Choice)

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Question 56

A school district performed a study to find the main causes leading to its students dropping out of school. Thirty cases were analyzed, and a primary cause was assigned to each case. The causes included unexcused absences (U), illness (I), family problems (F), and other causes (O). The results for the thirty cases are listed below: Construct a table summarizing the frequency distribution of the primary causes leading to student dropout. Cause Frequency

(Essay)

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Question 57

A store manager counts the number of customers who make a purchase in his store each day. The data are as follows. 10 11 8 14 7 10 10 11 8 7

(Multiple Choice)

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Question 58

The following data represent the number of cars passing through a toll booth during a certain time period over a number of days. 38 39 37 37 44 38 41 38 39 35 42 39 43 37 41

(Multiple Choice)

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Question 59

A manufacturer records the number of errors each work station makes during the week. The data are as follows. 6 3 2 3 5 2 0 2 5 4 2 0 1 $\text { Which of these choices display the correct dotplot? }$

(Multiple Choice)

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(33)

Question 60

Solve the problem. -The Kappa Iota Sigma Fraternity polled its members on the weekend party theme. The vote was as follows: six for toga, four for hayride, eight for beer bash, and two for masquerade. Display the vote count in a Pareto chart.

The histogram below represents the number of television sets per household for a sample of U.S. households. What is the maximum number of households having the same number of television sets?

The following frequency distribution analyzes the scores on a math test. Find the class midpoint of scores interval 95-99. Scores Number of students 40-59 2 60-75 4 76-82 6 83-94 15 95-99 5

The following frequency distribution analyzes the scores on a math test. Find the class boundaries of scores interval 40-59. Scores Number of students 40-59 2 60-75 4 76-82 6 83-94 15 95-99 5

The histogram below represents the number of television sets per household for a sample of U.S. households. What is the sample size?

The ages of the 45 members of a track and field team are listed below. Which of these choices display the correct stemplot? 21 18 42 35 32 21 44 25 38 48 14 19 23 22 28 32 34 27 31 17 16 41 37 22 24 33 32 21 26 30 22 27 32 30 20 18 17 21 15 26 36 31 40 16 25

The following data set represents Heather's average monthly charges (in $) for cable TV for the past 12 months. 105 125 110 98 102 115 110 123 118 101 95 128 Construct a frequency distribution with 4 classes. Charges \ Frequency

The following frequency distribution analyzes the scores on a math test. Find the class boundaries of scores interval 95-99. Scores Number of students 40-59 2 60-75 4 76-82 6 83-94 15 95-99 5

Use the data to create a stemplot. -The following data show the number of laps run by each participant in a marathon. 46 65 55 43 51 48 57 30 43 49 32 56

x -1 -4 -3 -3 -7 4 2 9 -4 -2 y -3 -6 -4 -9 3 1 1 1 -6 -3 $\begin{array}{lllllllllll} x & -1 & -4 & -3 & -3 & -7 & 4 & 2 & 9 & -4 & -2 \\ y & -3 & -6 & -4 & -9 & 3 & 1 & 1 & 1 & -6 & -3 \end{array}$

Explain in your own words why a bar graph can be misleading if one or both of the scales begin at some value other than zero.

The weights (in pounds) of 22 members of the junior varsity football team are listed below. 144 152 142 151 160 152 131 164 141 153 140 144 175 156 147 133 172 159 135 159 148 171 Which of these choices display the correct stemplot?

A store manager counts the number of customers who make a purchase in his store each day. The data are as follows. 10 11 8 14 7 10 10 11 8 7

The following data represent the number of cars passing through a toll booth during a certain time period over a number of days. 38 39 37 37 44 38 41 38 39 35 42 39 43 37 41

A manufacturer records the number of errors each work station makes during the week. The data are as follows. 6 3 2 3 5 2 0 2 5 4 2 0 1 $\text { Which of these choices display the correct dotplot? }$

Introduction to Statistics

Describing, Exploring, and Comparing Data

Probability

Discrete Probability Distributions

Normal Probability Distributions

Estimating Parameters and Determining Sample Sizes

Hypothesis Testing

Inferences From Two Samples

Correlation and Regression

Goodness-Of-Fit and Contingency Tables

Analysis of Variance

Nonparametric Tests

Statistical Process Control

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