The following frequency distribution displays the scores on a math test. Find the class boundaries of scores interval 40-59. $\begin{array}{cc} \hline \text { Scores } & \text { Number of Students } \\ \hline 50-59 & 2 \\ 60-69 & 4 \\ 70-79 & 6 \\ 80-89 & 15 \\ 90-99 & 5 \\ \hline \end{array}$

A) $49.5,59.5$ B) $50.5,59.5$ C) $49.5,58.5$ D) $50.5,58.5$ A) $49.5,59.5$ B) $50.5,59.5$ C) $49.5,58.5$ D) $50.5,58.5$ A

The following frequency distribution analyzes the scores on a math test. Find the class boundaries of scores interval 90-99. $\begin{array}{cc} \hline \text { Scores } & \text { Number of Students } \\ \hline 50-59 & 2 \\ 60-69 & 4 \\ 70-79 & 6 \\ 80-89 & 15 \\ 90-99 & 5 \\ \hline \end{array}$

A) $89.5,100.5$ B) $89.5,100.5$. C) $90.5,99.5$ D) $89.5,99.5$ A) $89.5,100.5$ B) $89.5,100.5$. C) $90.5,99.5$ D) $89.5,99.5$

Which of the following cumulative frequency distribution corresponds to the given frequency distribution? $\begin{array}{r|c} \text { Weight (oz) } & \begin{array}{c} \text { Number } \\ \text { of Stones } \end{array} \\ \hline 1.2-1.6 & 5 \\ 1.7-2.1 & 2 \\ 2.2-2.6 & 5 \\ 2.7-3.1 & 5 \\ 3.2-3.6 & 13 \end{array}$

A) $\begin{array}{r|c} \text { Weight (oz) } & \begin{array}{l} \text { Cumulative } \\ \text { Frequency } \end{array} \\ \hline 1.2-1.6 & 5 \\ 1.7-2.1 & 7 \\ 2.2-2.6 & 12 \\ 2.7-3.1 & 17 \\ 3.2-3.6 & 30 \end{array}$ B) $\begin{array}{c|c} \text { Weight (oz) } & \begin{array}{c} \text { Cumulative } \\ \text { Frequency } \end{array} \\ \hline \text { Less than 2.2 } & 7 \\ \text { Less than 3.2 } & 17 \\ \text { Less than 3.7 } & 30 \end{array}$ C) $\begin{array}{c|c} \text { Weight (oz) } & \begin{array}{c} \text { Cumulative } \\ \text { Frequency } \end{array} \\ \hline \text { Less than 1.7 } & 5 \\ \text { Less than 2.2 } & 7 \\ \text { Less than 2.7 } & 12 \\ \text { Less than 3.2 } & 17 \\ \text { Less than 3.7 } & 30 \end{array}$ D) $\begin{array}{c|c} \text { Weight (oz) } & \begin{array}{c} \text { Cumulative } \\ \text { Frequency } \end{array} \\ \hline \text { Less than 1.7 } & 5 \\ \text { Less than 2.2 } & 7 \\ \text { Less than } 2.7 & 12 \\ \text { Less than } 3.2 & 17 \\ \text { Less than } 3.7 & 28 \end{array}$ A) $\begin{array}{r|c} \text { Weight (oz) } & \begin{array}{l} \text { Cumulative } \\ \text { Frequency } \end{array} \\ \hline 1.2-1.6 & 5 \\ 1.7-2.1 & 7 \\ 2.2-2.6 & 12 \\ 2.7-3.1 & 17 \\ 3.2-3.6 & 30 \end{array}$ B) $\begin{array}{c|c} \text { Weight (oz) } & \begin{array}{c} \text { Cumulative } \\ \text { Frequency } \end{array} \\ \hline \text { Less than 2.2 } & 7 \\ \text { Less than 3.2 } & 17 \\ \text { Less than 3.7 } & 30 \end{array}$ C) $\begin{array}{c|c} \text { Weight (oz) } & \begin{array}{c} \text { Cumulative } \\ \text { Frequency } \end{array} \\ \hline \text { Less than 1.7 } & 5 \\ \text { Less than 2.2 } & 7 \\ \text { Less than 2.7 } & 12 \\ \text { Less than 3.2 } & 17 \\ \text { Less than 3.7 } & 30 \end{array}$ D) $\begin{array}{c|c} \text { Weight (oz) } & \begin{array}{c} \text { Cumulative } \\ \text { Frequency } \end{array} \\ \hline \text { Less than 1.7 } & 5 \\ \text { Less than 2.2 } & 7 \\ \text { Less than } 2.7 & 12 \\ \text { Less than } 3.2 & 17 \\ \text { Less than } 3.7 & 28 \end{array}$

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

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

Exam 2: Exploring Data With Tables and Graphs

Use the high closing values of Statstar Inc. stock from the years 2005-2016 to construct a time-series graph. (Let x = 0 represent 2005 and so on.)Identify a trend. Year High Year High 2005 48 2011 62 2006 53 2012 60 2007 47 2013 68 2008 55 2014 42 2009 58 2015 51 2010 61 2016 78

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Question 1

Correct Answer:

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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 Systolic Blood Pressure (mm Hg)

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Question 2

Correct Answer:

Verified

The following frequency distribution displays the scores on a math test. Find the class boundaries of scores interval 40-59. Scores Number of Students 50-59 2 60-69 4 70-79 6 80-89 15 90-99 5

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Question 3

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

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Question 4

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.

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Question 5

Suppose that a data set has a minimum value of 24 and a maximum of 79 and that you want 5 classes. Explain how to find the class width for this frequency table. What happens if you mistakenly use a class width of 11 instead of 12?

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Question 6

The following frequency distribution analyzes the scores on a math test. Find the class boundaries of scores interval 90-99. Scores Number of Students 50-59 2 60-69 4 70-79 6 80-89 15 90-99 5

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Question 7

According to USA Today, the largest categories of sports equipment sales are as follows: fishing ($2.0 billion); firearms and hunting ($3.1 billion); camping ($1.7 billion); golf ($2.5 billion). What type of graph would depict these different categories and their relative Amounts the best?

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Question 8

Which choice displays the best graphic display of the amount of nitrous oxide (NO 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: CO 5638 5708 5893 5807 5881 5939 6024 6032 5946 6022 NO 351 349 345 339 335 335 362 371 376 384

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Question 9

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. Sale Price (in thousand S) Frequency 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

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Question 10

Which of the following cumulative frequency distribution corresponds to the given frequency distribution? Weight (oz) Number of Stones 1.2-1.6 5 1.7-2.1 2 2.2-2.6 5 2.7-3.1 5 3.2-3.6 13

(Multiple Choice)

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Question 11

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 139 mm Hg inclusive? Systolic Blood Pressure for People Aged 25 - 40 Years Systolic Blood Pressure (mm Hg)

(Multiple Choice)

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Question 12

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?

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Question 13

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 14

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 139 mm Hg inclusive? Systolic Blood Pressure for People Aged 25 - 40 Years

(Multiple Choice)

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Question 15

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

(Multiple Choice)

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Question 16

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?

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Question 17

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

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Question 18

The scatterplot below displays the amount of nitrous oxide (NO)explained by the amount of carbon monoxide (CO)emissions in million metric tons over a ten year period in the United States. Select the choice that best describes any relationship between the variables.

(Multiple Choice)

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Question 19

x 0.51 0.02 0.14 0.29 0.34 0.8 0.47 0.71 y 0.31 0.46 -0.12 0.34 -0.05 0.8 0.35 0.47 Which of these choices display the correct scatterplot?

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Question 20

Showing 1 - 20 of 60

Use the high closing values of Statstar Inc. stock from the years 2005-2016 to construct a time-series graph. (Let x = 0 represent 2005 and so on.)Identify a trend. Year High Year High 2005 48 2011 62 2006 53 2012 60 2007 47 2013 68 2008 55 2014 42 2009 58 2015 51 2010 61 2016 78

The following frequency distribution displays the scores on a math test. Find the class boundaries of scores interval 40-59. Scores Number of Students 50-59 2 60-69 4 70-79 6 80-89 15 90-99 5

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

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.

Suppose that a data set has a minimum value of 24 and a maximum of 79 and that you want 5 classes. Explain how to find the class width for this frequency table. What happens if you mistakenly use a class width of 11 instead of 12?

The following frequency distribution analyzes the scores on a math test. Find the class boundaries of scores interval 90-99. Scores Number of Students 50-59 2 60-69 4 70-79 6 80-89 15 90-99 5

According to USA Today, the largest categories of sports equipment sales are as follows: fishing ($2.0 billion); firearms and hunting ($3.1 billion); camping ($1.7 billion); golf ($2.5 billion). What type of graph would depict these different categories and their relative Amounts the best?

Which of the following cumulative frequency distribution corresponds to the given frequency distribution? Weight (oz) Number of Stones 1.2-1.6 5 1.7-2.1 2 2.2-2.6 5 2.7-3.1 5 3.2-3.6 13

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?

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

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

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 scatterplot below displays the amount of nitrous oxide (NO)explained by the amount of carbon monoxide (CO)emissions in million metric tons over a ten year period in the United States. Select the choice that best describes any relationship between the variables.

x 0.51 0.02 0.14 0.29 0.34 0.8 0.47 0.71 y 0.31 0.46 -0.12 0.34 -0.05 0.8 0.35 0.47 Which of these choices display the correct scatterplot?

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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