Construct a stem-and-leaf display for the following data. \[\begin{array} { l l l l l l l l l } 12 & 52 & 51 & 37 & 47 & 40 & 38 & 26 & 57&31 \\ 49 & 43 & 45 & 19 & 36 & 32 & 44 & 48 & 22&18 \end{array}\]

The answer of Construct a stem-and-leaf display for the following...

The grades of 10 students on their first management test are shown below. \[\begin{array} { l l l l } 94 & 61 & 96 & 66&92 \\ 68 & 75 & 85 & 84&78 \end{array}\] a. Construct a frequency distribution. Let the first class be 60 - 69. b. Construct a cumulative frequency distribution. c. Construct a relative frequency distribution.

The answer of The grades of 10 students on their...

Exhibit 2-1 The number of hours worked per week) by 400 statistics students are shown below. \[\begin{array} { c c } \text { Number of Hours } & \text { Frequency } \\ 0 - 9 & 20 \\ 10 - 19 & 80 \\ 20 - 29 & 200 \\ 30 - 39 & 100 \end{array}\] -Refer to Exhibit 2-1. The class width for this distribution

A) is 9 B) is 10 C) is 39, which is: the largest value minus the smallest value or 39 - 0 = 39 D) varies from class to class A) is 9 B) is 10 C) is 39, which is: the largest value minus the smallest value or 39 - 0 = 39 D) varies from class to class

d. 60 ANSWER: c Exhibit 2-4 A sample of 15 children shows their favorite restaurant: $\begin{array}{|l|l|l|} \hline \text { McDonalds } & \text { Luppi's } & \text { Mellow Mushroom } \\ \hline \text { Friday's } & \text { McDonalds } & \text { McDonalds } \\ \hline \text { Pizza Hut } & \text { Taco Bell } & \text { McDonalds } \\ \hline \text { Mellow Mushroom } & \text { Luppi's } & \text { Pizza Hut } \\ \hline \text { McDonalds } & \text { Friday's } & \text { McDonalds }\\\hline \end{array}$ -Refer to Exhibit 2-4. Determine the percent frequency for McDonalds.

A) 10% B) 27% C) 2% D) 40% A) 10% B) 27% C) 2% D) 40%

The following data shows the price of PAO, Inc. stock over the last eight months. $\begin{array}{|c|c|} \hline \text { Month } & \text { Price } \$ \text { ) } \\ \hline 1 & 2.08 \\ \hline 2 & 2.00 \\ \hline 3 & 2.03 \\ \hline 4 & 1.91 \\\hline 5 & 1.88 \\ \hline 6 & 1.87 \\ \hline 7 & 1.70 \\ \hline 8 & 1.67 \\ \hline \end{array}$ a. Develop a scatter diagram and draw a trend line through the points. b. What kind of relationship exists between stock price and time negative, positive, or no relation)?

The answer of The following data shows the price of...

A) a graphical presentation of a frequency or relative frequency distribution B) a graphical method of presenting a cumulative frequency or a cumulative relative frequency distribution C) the history of data elements D) the same as a pie chart A) a graphical presentation of a frequency or relative frequency distribution B) a graphical method of presenting a cumulative frequency or a cumulative relative frequency distribution C) the history of data elements D) the same as a pie chart

Exhibit 2-1 The number of hours worked per week) by 400 statistics students are shown below. \[\begin{array} { c c } \text { Number of Hours } & \text { Frequency } \\ 0 - 9 & 20 \\ 10 - 19 & 80 \\ 20 - 29 & 200 \\ 30 - 39 & 100 \end{array}\] -Refer to Exhibit 2-1. The cumulative frequency for the class of 20 - 29

A) is 200 B) is 300 C) is 0.75 D) is 0.5 A) is 200 B) is 300 C) is 0.75 D) is 0.5

Exhibit 2-3 Michael's Compute-All, a national computer retailer, has kept a record of the number of laptop computers they have sold for a period of 80 days. Their sales records are shown below: $\begin{array}{|c|r|} \hline \text { Number of Laptops Sold } & \text { Number of Days } \\ \hline 0-19 & 5 \\ \hline 20-39 & 15 \\ \hline 40-59 & 30 \\ \hline 60-79 & 20 \\ \hline 80-99 & 10 \\ \hline \text { Total } & 80 \\ \hline \end{array}$ -Refer to Exhibit 2-3. If one develops a cumulative frequency distribution for the above data, the last class will have a frequency of

A) 10 B) 100 C) 0 to 100 D) 80 A) 10 B) 100 C) 0 to 100 D) 80

Exhibit 2-2 A survey of 800 college seniors resulted in the following crosstabulation regarding their undergraduate major and whether or not they plan to go to graduate school. Undergraduate Major \[\begin{array} { l c c c c } \text { Graduate School } & \text { Business } & \text { Engin eering } & \text { Other s } & \text { Total } \\ \text { Yes } & 70 & 84 & 126 & 280 \\ \text { No } & 182 & 208 & 130 & 520 \\ \text { Total } & 252 & 292 & 256 & 800 \end{array}\] \[\begin{array} { l c c c c } \text { Graduate School } & \text { Business } & \text { Engin eering } & \text { Other s } & \text { Total } \\ \text { Yes } & 70 & 84 & 126 & 280 \\ \text { No } & 182 & 208 & 130 & 520 \\ \text { Total } & 252 & 292 & 256 & 800 \end{array}\] -Refer to Exhibit 2-2. What percentage of the students does not plan to go to graduate school?

A) 280 B) 520 C) 65 D) 32 A) 280 B) 520 C) 65 D) 32

Forty shoppers were asked if they preferred the weight of a can of soup to be 6 ounces, 8 ounces, or 10 ounces. Below you are given their responses. \[\begin{array} { r r r r r r r r r } 6&6&6&10&8&8&8&10&6&6\\ 10&10&8&8&6&6&6&8&6&6\\ 8&8&8&10&8&8&6&10&8&6\\ 6&8&8&8&10&10&8&10&8&6 \end{array}\] a. Construct a frequency distribution and graphically represent the frequency distribution. b. Construct a relative frequency distribution and graphically represent the relative frequency distribution.

The answer of Forty shoppers were asked if they preferred...

Exhibit 2-3 Michael's Compute-All, a national computer retailer, has kept a record of the number of laptop computers they have sold for a period of 80 days. Their sales records are shown below: $\begin{array}{|c|r|} \hline \text { Number of Laptops Sold } & \text { Number of Days } \\ \hline 0-19 & 5 \\ \hline 20-39 & 15 \\ \hline 40-59 & 30 \\ \hline 60-79 & 20 \\ \hline 80-99 & 10 \\ \hline \text { Total } & 80 \\ \hline \end{array}$ -Refer to Exhibit 2-3. The class width of the above distribution is

A) 0 to 100 B) 20 C) 80 D) 5 A) 0 to 100 B) 20 C) 80 D) 5

Exam 2: Descriptive Statistics: Tabular and Graphical Displays

Conclusions drawn from two or more separate crosstabulations that can be reversed when the data are aggregated into a single crosstabulation is known as

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Question 41

Construct a stem-and-leaf display for the following data. 12 52 51 37 47 40 38 26 57 31 49 43 45 19 36 32 44 48 22 18

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Question 42

The grades of 10 students on their first management test are shown below. 94 61 96 66 92 68 75 85 84 78 a. Construct a frequency distribution. Let the first class be 60 - 69. b. Construct a cumulative frequency distribution. c. Construct a relative frequency distribution.

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Question 43

Which of the following is a graphical summary of a set of data in which each data value is represented by a dot above the axis?

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Question 44

Exhibit 2-1 The number of hours worked per week) by 400 statistics students are shown below. Number of Hours Frequency 0-9 20 10-19 80 20-29 200 30-39 100 -Refer to Exhibit 2-1. The class width for this distribution

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Question 45

A cumulative relative frequency distribution shows

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Question 46

The sum of frequencies for all classes will always equal

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Question 47

d. 60 ANSWER: c Exhibit 2-4 A sample of 15 children shows their favorite restaurant: McDonalds Luppi's Mellow Mushroom Friday's McDonalds McDonalds Pizza Hut Taco Bell McDonalds Mellow Mushroom Luppi's Pizza Hut McDonalds Friday's McDonalds -Refer to Exhibit 2-4. Determine the percent frequency for McDonalds.

(Multiple Choice)

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Question 48

The following data shows the price of PAO, Inc. stock over the last eight months. Month Price \ ) 1 2.08 2 2.00 3 2.03 4 1.91 5 1.88 6 1.87 7 1.70 8 1.67 a. Develop a scatter diagram and draw a trend line through the points. b. What kind of relationship exists between stock price and time negative, positive, or no relation)?

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Question 49

A histogram is

(Multiple Choice)

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Question 50

A frequency distribution is a tabular summary of data showing the

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Question 51

Exhibit 2-1 The number of hours worked per week) by 400 statistics students are shown below. Number of Hours Frequency 0-9 20 10-19 80 20-29 200 30-39 100 -Refer to Exhibit 2-1. The cumulative frequency for the class of 20 - 29

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Question 52

Exhibit 2-3 Michael's Compute-All, a national computer retailer, has kept a record of the number of laptop computers they have sold for a period of 80 days. Their sales records are shown below: Number of Laptops Sold Number of Days 0-19 5 20-39 15 40-59 30 60-79 20 80-99 10 Total 80 -Refer to Exhibit 2-3. If one develops a cumulative frequency distribution for the above data, the last class will have a frequency of

(Multiple Choice)

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Question 53

Exhibit 2-2 A survey of 800 college seniors resulted in the following crosstabulation regarding their undergraduate major and whether or not they plan to go to graduate school. Undergraduate Major Graduate School Business Engin eering Other s Total Yes 70 84 126 280 No 182 208 130 520 Total 252 292 256 800 Graduate School Business Engin eering Other s Total Yes 70 84 126 280 No 182 208 130 520 Total 252 292 256 800 -Refer to Exhibit 2-2. What percentage of the students does not plan to go to graduate school?

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Question 54

Which of the following graphical methods shows the relationship between two variables?

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Question 55

Forty shoppers were asked if they preferred the weight of a can of soup to be 6 ounces, 8 ounces, or 10 ounces. Below you are given their responses. 6 6 6 10 8 8 8 10 6 6 10 10 8 8 6 6 6 8 6 6 8 8 8 10 8 8 6 10 8 6 6 8 8 8 10 10 8 10 8 6 a. Construct a frequency distribution and graphically represent the frequency distribution. b. Construct a relative frequency distribution and graphically represent the relative frequency distribution.

(Short Answer)

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Question 56

In a cumulative frequency distribution, the last class will always have a cumulative frequency equal to

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Question 57

The most common graphical presentation of quantitative data is a

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Question 58

Exhibit 2-3 Michael's Compute-All, a national computer retailer, has kept a record of the number of laptop computers they have sold for a period of 80 days. Their sales records are shown below: Number of Laptops Sold Number of Days 0-19 5 20-39 15 40-59 30 60-79 20 80-99 10 Total 80 -Refer to Exhibit 2-3. The class width of the above distribution is

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Question 59

Five hundred recent graduates indicated their majors as follows. Major Frequency Accounting 60 Finance 100 Economics 40 Management 120 Marketing 80 Engineering 60 Computer Science 40 Total 500 a. Construct a relative frequency distribution. b. Construct a percent frequency distribution.

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Question 60

Conclusions drawn from two or more separate crosstabulations that can be reversed when the data are aggregated into a single crosstabulation is known as

Construct a stem-and-leaf display for the following data. 12 52 51 37 47 40 38 26 57 31 49 43 45 19 36 32 44 48 22 18

The grades of 10 students on their first management test are shown below. 94 61 96 66 92 68 75 85 84 78 a. Construct a frequency distribution. Let the first class be 60 - 69. b. Construct a cumulative frequency distribution. c. Construct a relative frequency distribution.

Which of the following is a graphical summary of a set of data in which each data value is represented by a dot above the axis?

Exhibit 2-1 The number of hours worked per week) by 400 statistics students are shown below. Number of Hours Frequency 0-9 20 10-19 80 20-29 200 30-39 100 -Refer to Exhibit 2-1. The class width for this distribution

A cumulative relative frequency distribution shows

The sum of frequencies for all classes will always equal

A histogram is

A frequency distribution is a tabular summary of data showing the

Exhibit 2-1 The number of hours worked per week) by 400 statistics students are shown below. Number of Hours Frequency 0-9 20 10-19 80 20-29 200 30-39 100 -Refer to Exhibit 2-1. The cumulative frequency for the class of 20 - 29

Which of the following graphical methods shows the relationship between two variables?

In a cumulative frequency distribution, the last class will always have a cumulative frequency equal to

The most common graphical presentation of quantitative data is a

Five hundred recent graduates indicated their majors as follows. Major Frequency Accounting 60 Finance 100 Economics 40 Management 120 Marketing 80 Engineering 60 Computer Science 40 Total 500 a. Construct a relative frequency distribution. b. Construct a percent frequency distribution.

Data and Statistics

Descriptive Statistics: Numerical Measures

Introduction to Probability

Discrete Probability Distributions

Continuous Probability Distributions

Sampling and Sampling Distributions

Interval Estimation

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Comparisons Involving Means, Experimental Design, and Analysis of Variance

Comparisons Involving Proportions and a Test of Independence

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