Exam 2: Organizing Data

Construct a stem-and-leaf diagram for the given data. -The diastolic blood pressures for a sample of patients at a clinic were as follows. The measurements are in mmHg. 78 87 91 85 97 102 73 90 102 105 94 85 81 95 77 106 84 101 83 92 79 81 96 88 100 85 89 87 83 90 88 95 78 74 108 85 87 92 97 83 Construct a stem-and-leaf diagram using two lines per stem.

Construct a pie chart representing the given data set. -The data below represent the results of a poll in which the following question was asked: "To what degree are you satisfied with your current health insurance? Very $13\%$ Somewhat $30 \%$ Not at All $35\%$ No opinion $22 \%$

Identify the variable. -The following table gives the top five movies at the box office this week. Rank Last week Movie title Studio Box office sales (\ millions) 1 N/A Pirate Adventure Movie Giant 35.2 2 2 Secret Agent Files G.M.G. 19.5 3 1 Epic Super Hero Team 21st Century 14.3 4 5 Reptile Ride Movie Giant 10.1 5 4 Must Love Cats Dreamboat 9.9 Identify the variable under consideration in the first column?

A graphical display of a data set is given. Identify the overall shape of the distribution as (roughly)bell-shaped,triangular, uniform, reverse J-shaped, J-shaped, right skewed, left skewed, bimodal, or multimodal. -A relative frequency histogram for the sale prices of homes sold in one city during 2006 is shown below.

A graphical display of a data set is given. Identify the overall shape of the distribution as (roughly)bell-shaped,triangular, uniform, reverse J-shaped, J-shaped, right skewed, left skewed, bimodal, or multimodal. -A stem-and-leaf diagram is given below for the annual precipitation in one U.S. city for 28 consecutive years. Precipitation data are in inches. 0 9 1 142 2 0203 3 01472832 4 13487 5 1748 6 36 7 1

When organizing data into tables, what is the disadvantage of having too many classes? What is the disadvantage of having too few classes?

Provide an appropriate response. -The bar graph below shows the number of car accidents occurring in one city in each of the years 2001 through 2006. The vertical axis is truncated and as a result the graph is misleading. Construct an improved version of the graph which is less misleading. Use the symbol // in your graph. Explain what the symbol // means.

Provide an appropriate response. -Explain in your own words why a truncated bar graph can be misleading.

Construct a stem-and-leaf diagram for the given data. -The weights of 22 members of the 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

A discrete variable can only yield whole-number values.

Complete the contingency table and use it to solve the problem. -The partially filled contingency table gives the frequencies of the data on age (in years)and sex from the residents of a retirement home. What is the relative frequency for males in the age group 60-69?

The following table gives the top five movies at the box office this week. Rank Last week Movie title Studio Box office sales (\ millions) 1 N/A Pirate Adventure Movie Giant 35.2 2 2 Secret Agent Files G.M.G. 19.5 3 1 Epic Super Hero Team 21 st Century 14.3 4 5 Reptile Ride Movie Giant 10.1 5 4 Must Love Cats Dreamboat 9.9 What kind of data is provided by the information in the first column?

Construct a stem-and-leaf diagram for the given data. -The average weekly temperatures (in degrees Fahrenheit)in Orlando, Florida over a 6-month span are given below. Round each observation to the nearest degree and then construct a stem-and-leaf Diagram of the rounded data using two lines per stem. 73.2 81.3 75.5 90.7 94.7 88.3 71.8 84.8 84.7 76.5 93.4 79.0 84.3 83.0 88.9 84.4 74.6 86.6 89.3 77.2 78.9 87.3 83.1 70.4

The following table shows the average weight of offensive linemen for each given football team. Team Average weight (pounds) Gators 303.52 Lakers 326.78 Eagles 290.61 Pioneers 321.96 Lions 297.35 Mustangs 302.49 Rams 345.88 Buffalos 329.24 Identify the variable under consideration in the first column?

A graphical display of a data set is given. State whether the distribution is (roughly)symmetric, right skewed, or leftskewed. -The ages of a group of patients being treated at one hospital for osteoporosis are summarized in the frequency histogram below.

Construct a stem-and-leaf diagram for the given data. -The attendance counts for this season's basketball games are listed below. 227 239 215 219 221 233 229 233 235 228 245 231

Provide an appropriate response. -The data in the following table show the results of a survey of college students asking which vacation destination they would choose given the eight choices shown. Determine the value that Should be entered in the relative frequency column for Florida. Destination Frequency Relative frequency Florida 30 Mexico 67 Belize 21 Puerto Rico 22 Alaska 5 California 18 Colorado 18 Arizona 19

The maximum recorded temperatures (in degrees Fahrenheit)for 35 different U.S. cities are given below. 108 125 119 109 112 104 118 110 115 113 108 116 105 113 120 111 114 106 112 119 107 110 112 104 121 106 108 123 105 117 124 115 110 114 113 Construct a stem-and-leaf diagram using two lines per stem.

A nurse measured the blood pressure of each person who visited her clinic. Following is a relative-frequency histogramfor the systolic blood pressure readings for those people aged between 25 and 40. Use the histogram to answer thequestion. The blood pressure readings were given to the nearest whole number. -Given that 900 people were aged between 25 and 40, approximately how many had a systolic blood pressure reading between 140 and 149 inclusive?

Identify the variable. -The following table gives the top five movies at the box office this week. Rank Last week Movie title Studio Box office sales (\ millions) 1 N/A Pirate Adventure Movie Giant 35.2 2 2 Secret Agent Files G.M.G. 19.5 3 1 Epic Super Hero Team 21st Century 14.3 4 5 Reptile Ride Movie Giant 10.1 5 4 Must Love Cats Dreamboat 9.9 Identify the variable under consideration in the fourth column?