The following frequency distribution represents the scores on a math test. Find the class_ midpoint of scores for the interval 40-59. \[\begin{array} { c c } \hline \text { Scores } & \text { Number of students } \\ \hline 50 - 59 & 2 \\ 60 - 69 & 4 \\ 70 - 79 & 6 \\ 80 - 89 & 15 \\ 90 - 99 & 5 \\ \hline \end{array}\]

A) 50.5 B) 48.5 C) 49.5 D) 49.0 A) 50.5 B) 48.5 C) 49.5 D) 49.0

Which choice displays the best graphic display of the amount of nitrous oxide (NO)1)____________ explained by the amount of carbon monoxide (CO)emissions in million metric tons over a Ten year period in the United States? The data set is below: \[\begin{array} { r | c c c c c c c c } \text { Athlete } & \mathbf { A } & \mathbf { B } & \mathbf { C } & \mathbf { D } & \mathbf { E } & \mathbf { F } & \mathbf { G } & \mathbf { H } \\ \hline \text { Before } & 115.2 & 114 & 116.4 & 119.8 & 110.9 & 112.4 & 111.5 & 117.3 \\ \hline \text { After } & 112.9 & 112.7 & 114 & 120.6 & 109.1 & 109.1 & 107.9 & 113.4 \end{array}\]

A) Nitrous Oxide (NO) and Carbon Monoxide (CO) Emissions in the U.S. over Ten Years B) Nitrous Oxide (NO) and Carbon Monoxide (CO) Emissions in the U.S. over Ten Years C) Nitrous Oxide (NO) and Carbon Monoxide (CO) Emissions in the U.S. over Ten Years D) Nitrous Oxide (NO) and Carbon Monoxide (CO) Emissions in the U.S. over Ten Years A) Nitrous Oxide (NO) and Carbon Monoxide (CO) Emissions in the U.S. over Ten Years B) Nitrous Oxide (NO) and Carbon Monoxide (CO) Emissions in the U.S. over Ten Years C) Nitrous Oxide (NO) and Carbon Monoxide (CO) Emissions in the U.S. over Ten Years D) Nitrous Oxide (NO) and Carbon Monoxide (CO) Emissions in the U.S. over Ten Years

The frequency distribution below summarizes employee years of service for Alpha Corporation. Find the class midpoint for class 1 -5. \[\begin{array} { c | c } \text { Years of Service } & \text { Frequency } \\ \hline 1 - 5 & 5 \\ 6 - 10 & 20 \\ 11 - 15 & 25 \\ 16 - 20 & 10 \\ 21 - 25 & 5 \\ 26 - 30 & 3 \end{array}\]

A) 3.5 years B) 3.0 years C) 5.0 years D) 2.5 years A) 3.5 years B) 3.0 years C) 5.0 years D) 2.5 years

A manufacturer records the number of errors each work station makes during the week. The data are as follows. $\begin{array} { l l l l l l l l l l l l l } 6 & 3 & 2 & 3 & 5 & 2 & 0 & 2 & 5 & 4 & 2 & 0 & 1 \end{array}$ 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

The following data show the number of laps run by each participant in a marathon. $\begin{array} { l l l l l l l l l l l l } 46 & 65 & 55 & 43 & 51 & 48 & 57 & 30 & 43 & 49 & 32 & 56 \end{array}$ Which of these choices display the correct stemplot?

A) $\begin{array} { l | l l l } 3 & 0 & 2 \\ 4 & 3&3 & 3&6&8&9 \\ 5 & 1 & 5&6&7 \\ 6 & 5 \end{array}$ B) $\begin{array} { l | l l l } 3 & 0 & 2 \\ 4 & 3&6&8&9\\ 4&1&3&5&6&7 \\ 6 & 5 \end{array}$ A) $\begin{array} { l | l l l } 3 & 0 & 2 \\ 4 & 3&3 & 3&6&8&9 \\ 5 & 1 & 5&6&7 \\ 6 & 5 \end{array}$ B) $\begin{array} { l | l l l } 3 & 0 & 2 \\ 4 & 3&6&8&9\\ 4&1&3&5&6&7 \\ 6 & 5 \end{array}$

Exam 2: Exploring Data With Tables and Graphs

Analysis of the data from 25 mothers indicates that an infant's birth weight $( \mathrm { g } ) , y$ can be estimated by a mother's weight (kg), x , using the regression equation $y = 31 x + 1501$ If a mother's weight is 70 kg the infant's birth weight can be estimated as _________ $g .$

(Multiple Choice)

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Question 21

Attendance records at a school show the number of days each student was absent during the_ year. The days absent for each student were as follows. 0 2 3 4 2 3 4 6 7 2 3 4 6 9 8 Which of these choices display the correct dotplot?

(Multiple Choice)

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Question 22

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

(Multiple Choice)

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Question 23

The frequency table below shows the amount of weight loss during the first month of a diet program for a group of men. Constructing a frequency polygon. Applying a loose interpretation of the requirements for a normal distribution, do the pounds of weight loss appear to be normally distributed? Why or why not? Weight (lb) Frequency 5-7 2 8-10 9 11-13 18 14-16 13 17-19 4 20-22 1 $The frequency table below shows the amount of weight loss during the first month of a diet program for a group of men. Constructing a frequency polygon. Applying a loose interpretation of the requirements for a normal distribution, do the pounds of weight loss appear to be normally distributed? Why or why not? \begin{array} { c | c } \text { Weight (lb) } & \text { Frequency } \\ \hline 5 - 7 & 2 \\ 8 - 10 & 9 \\ 11 - 13 & 18 \\ 14 - 16 & 13 \\ 17 - 19 & 4 \\ 20 - 22 & 1 \end{array} 20-22 1$ 20-22 1

(Essay)

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Question 24

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 (in mm Hg)were given to the Nearest whole number. What class width was used to construct the relative frequency Distribution? Systolic Blood Pressure for People Aged 25 - 40 Years

(Multiple Choice)

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Question 25

Wagenlucht Ice Cream Company is always trying to create new flavors of ice cream. They are market testing three kinds to find out which one has the best chance of becoming Popular. They give small samples of each to 20 people at a grocery store. Four ice cream Tasters preferred the Strawberry Cream, 12 preferred Choco-Nuts, and four loved the Orange Mint. Construct a Pareto chart to represent these preferences. Choose the vertical Scale so that the relative frequencies are represented.

(Multiple Choice)

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Question 26

The following data set represents Heather's average monthly charges (in $)for cable TV for the_ past 24 months. 105 125 110 98 102 115 110 123 118 101 95 128 110 105 122 107 118 107 117 125 116 110 101 107 Construct a frequency distribution with 4 classes, a class width of 2 hours, and a lower limit of 100 for class 1 . Charges Frequency

(Essay)

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Question 27

The following frequency distribution represents the scores on a math test. Find the class_ midpoint of scores for the interval 40-59. Scores Number of students 50-59 2 60-69 4 70-79 6 80-89 15 90-99 5

(Multiple Choice)

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Question 28

The following data consists of the weights (in pounds)of 15 randomly selected women and_ the weights of 15 randomly selected men. Which of these choices display the correct back- To-back stemplot? Women: 128 150 118 166 142 122 137 110 175 152 145 126 139 111 170 Men: 140 153 199 186 169 136 176 162 196 155 173 190 141 166 153

(Multiple Choice)

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Question 29

Define the difference between a Relative Frequency Distribution and a Cumulative Frequency Distribution.

(Essay)

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Question 30

Describe the differences between a histogram and a stemplot and discuss the advantages and disadvantages of each.

(Essay)

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Question 31

Which choice displays the best graphic display of the amount of nitrous oxide (NO)1)____________ explained by the amount of carbon monoxide (CO)emissions in million metric tons over a Ten year period in the United States? The data set is below: Athlete Before 115.2 114 116.4 119.8 110.9 112.4 111.5 117.3 After 112.9 112.7 114 120.6 109.1 109.1 107.9 113.4

(Multiple Choice)

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Question 32

Graphs should be constructed in a way that is fair and objective. A common deceptive graph alters the axes of the graph in what way?

(Essay)

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Question 33

Describe how a data point labeled as an outlier can affect the analysis of a data set in a frequency distribution or histogram.

(Essay)

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Question 34

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 35

The frequency distribution below summarizes employee years of service for Alpha Corporation. Find the class midpoint for class 1 -5. Years of Service Frequency 1-5 5 6-10 20 11-15 25 16-20 10 21-25 5 26-30 3

(Multiple Choice)

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Question 36

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 Which of these choices display the correct dotplot?

(Multiple Choice)

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Question 37

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 Which of these choices display the correct stemplot?

(Multiple Choice)

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Question 38

The graph below shows the number of car accidents occurring in one city in each of the_ years 2011 through 2016. The number of accidents dropped in 2013 after a new speed limit was imposed. Does the graph distort the data? How would you redesign the graph to be less misleading?

(Essay)

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Question 39

The linear coefficient denoted by r measures the of the linear association between two variables.

(Multiple Choice)

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Question 40

Showing 21 - 40 of 59

Analysis of the data from 25 mothers indicates that an infant's birth weight $( \mathrm { g } ) , y$ can be estimated by a mother's weight (kg), x , using the regression equation $y = 31 x + 1501$ If a mother's weight is 70 kg the infant's birth weight can be estimated as _________ $g .$

Attendance records at a school show the number of days each student was absent during the_ year. The days absent for each student were as follows. 0 2 3 4 2 3 4 6 7 2 3 4 6 9 8 Which of these choices display the correct dotplot?

The following frequency distribution represents the scores on a math test. Find the class_ midpoint of scores for the interval 40-59. Scores Number of students 50-59 2 60-69 4 70-79 6 80-89 15 90-99 5

Define the difference between a Relative Frequency Distribution and a Cumulative Frequency Distribution.

Describe the differences between a histogram and a stemplot and discuss the advantages and disadvantages of each.

Graphs should be constructed in a way that is fair and objective. A common deceptive graph alters the axes of the graph in what way?

Describe how a data point labeled as an outlier can affect the analysis of a data set in a frequency distribution or histogram.

The frequency distribution below summarizes employee years of service for Alpha Corporation. Find the class midpoint for class 1 -5. Years of Service Frequency 1-5 5 6-10 20 11-15 25 16-20 10 21-25 5 26-30 3

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 Which of these choices display the correct dotplot?

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 Which of these choices display the correct stemplot?

The graph below shows the number of car accidents occurring in one city in each of the_ years 2011 through 2016. The number of accidents dropped in 2013 after a new speed limit was imposed. Does the graph distort the data? How would you redesign the graph to be less misleading?

The linear coefficient denoted by r measures the of the linear association between two variables.

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

Chi-Square and Analysis of Variance

Statistical Control Charts, Nonparametric Tests, and Hypothesis Testing

Filters

Exam 2: Exploring Data With Tables and Graphs

Attendance records at a school show the number of days each student was absent during the_ year. The days absent for each student were as follows. 0 2 3 4 2 3 4 6 7 2 3 4 6 9 8 Which of these choices display the correct dotplot?

The following frequency distribution represents the scores on a math test. Find the class_ midpoint of scores for the interval 40-59. Scores Number of students 50-59 2 60-69 4 70-79 6 80-89 15 90-99 5

Define the difference between a Relative Frequency Distribution and a Cumulative Frequency Distribution.

Describe the differences between a histogram and a stemplot and discuss the advantages and disadvantages of each.

Graphs should be constructed in a way that is fair and objective. A common deceptive graph alters the axes of the graph in what way?

Describe how a data point labeled as an outlier can affect the analysis of a data set in a frequency distribution or histogram.

The frequency distribution below summarizes employee years of service for Alpha Corporation. Find the class midpoint for class 1 -5. Years of Service Frequency 1-5 5 6-10 20 11-15 25 16-20 10 21-25 5 26-30 3

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 Which of these choices display the correct dotplot?

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 Which of these choices display the correct stemplot?

The graph below shows the number of car accidents occurring in one city in each of the_ years 2011 through 2016. The number of accidents dropped in 2013 after a new speed limit was imposed. Does the graph distort the data? How would you redesign the graph to be less misleading?

The linear __________ coefficient denoted by r measures the __________ of the linear association between two variables.

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

Chi-Square and Analysis of Variance

Statistical Control Charts, Nonparametric Tests, and Hypothesis Testing

Filters

The linear coefficient denoted by r measures the of the linear association between two variables.