Exam 2: Organizing and Visualizing

SCENARIO 2-9 The frequency distribution below represents the rents of 250 randomly selected federally subsidized apartments in a small town. -Referring to Scenario 2-9, ________ apartments rented for at least $1,200 but less than $1,400.

True or False: A multidimensional contingency table allows you to tally the responses of more than two categorical variables.

SCENARIO 2-12 The table below contains the opinions of a sample of 200 people broken down by gender about the latest congressional plan to eliminate anti-trust exemptions for professional baseball. -Referring to Scenario 2-12, ________ percent of the 200 were females who were either neutral or against the plan.

SCENARIO 2-10 The histogram below represents scores achieved by 200 job applicants on a personality profile. -Referring to the histogram from Scenario 2-10, 90% of the job applicants scored above or equal to ________.

True or False: The sum of cumulative frequencies in a distribution always equals 1.

True or False: A multidimensional contingency table allows you to tally the responses of more than two continuous variables.

Data on the number of credit hours of 20,000 students at a public university enrolled in a Spring Semester were collected.Which of the following is the best for presenting the information?

SCENARIO 2-13 Given below is the stem-and-leaf display representing the amount of detergent used in gallons (with leaves in 10ths of gallons)in a day by 25 drive-through car wash operations in Phoenix. 2-36 Organizing and Visualizing Variables -Referring to Scenario 2-13, if a percentage histogram for the detergent data is constructed, using "9.0 but less than 10.0 gallons" as the first class, the percentage of drive-through car wash operations that use "12.0 but less than 13.0 gallons" of detergent would be ________.

SCENARIO 2-9 The frequency distribution below represents the rents of 250 randomly selected federally subsidized apartments in a small town. -Referring to Scenario 2-9, ________ percent of the apartments rented for $1,400 or more.

SCENARIO 2-17 The following table presents total retail sales in millions of dollars for the leading apparel companies over a two-year period in the past. 2-46 Organizing and Visualizing Variables -Referring to Scenario 2-17, construct a side-by-side bar chart.

SCENARIO 2-6 A sample of 200 students at a Big-Ten university was taken after the midterm to ask them whether they went bar hopping the weekend before the midterm or spent the weekend studying, and whether they did well or poorly on the midterm.The following table contains the result. -Referring to Scenario 2-6, _______ percent of the students in the sample went bar hopping the Weekend before the midterm and did well on the midterm.

SCENARIO 2-2 At a meeting of information systems officers for regional offices of a national company, a survey was taken to determine the number of employees the officers supervise in the operation of their departments, where X is the number of employees overseen by each information systems officer. X f_ 1 7 2 5 3 11 4 8 5 9 -The width of each bar in a histogram corresponds to the

SCENARIO 2-12 The table below contains the opinions of a sample of 200 people broken down by gender about the latest congressional plan to eliminate anti-trust exemptions for professional baseball. -Referring to Scenario 2-12, _______ percent of the 200 were not neutral.

SCENARIO 2-10 The histogram below represents scores achieved by 200 job applicants on a personality profile. -Referring to the histogram from Scenario 2-10, _______ percent of the applicants scored between 20 and below 50.

SCENARIO 2-5 The following are the duration in minutes of a sample of long-distance phone calls made within the continental United States reported by one long-distance carrier. -Referring to Scenario 2-5, if 100 calls were randomly sampled, how many calls lasted 15 minutes Or longer?

True or False: The sum of relative frequencies in a distribution always equals 1.

SCENARIO 2-16 The figure below is the percentage polygon for the amount of calories for a sample of 36 pizzas products where the upper limits of the intervals are: 310, 340, 370, 400 and 430. Percentage Polygon for Calories -Referring to Scenario 2-16, roughly what percentage of pizza products contains at least 340 Calories?

When polygons or histograms are constructed, which axis must show the true zero or "origin"?

True or False: Ogives are plotted at the midpoints of the class groupings.

SCENARIO 2-12 The table below contains the opinions of a sample of 200 people broken down by gender about the latest congressional plan to eliminate anti-trust exemptions for professional baseball. -Referring to Scenario 2-12, construct a table of column percentages.