Exam 2: Organizing and Visualizing 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, of the males in the sample, ________ percent were for the plan.

The Guidelines for Developing Visualizations recommend always including a scale for each axis if the chart contains axes.

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.

A _______ is a vertical bar chart in which the rectangular bars are constructed at the boundaries of each class interval.

SCENARIO 2-18 The stem-and-leaf display below shows the result of a survey on 50 students on their satisfaction with their school with the higher scores represent higher level of satisfaction. -Referring to Scenario 2-18, what was the highest level of satisfaction?

SCENARIO 2-14 The table below contains the number of people who own a portable Blu-ray player in a sample of 600 broken down by gender. -Referring to Scenario 2-14, construct a table of total percentages.

SCENARIO 2-7 The Stem-and-Leaf display below contains data on the number of months between the date a civil suit is filed and when the case is actually adjudicated for 50 cases heard in superior court. -Referring to Scenario 2-7, if a frequency distribution with equal sized classes was made from this data, and the first class was "10 but less than 20," the frequency of that class would be ________.

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. -Referring to Scenario 2-17, in general, retail sales for the apparel industry have seen a modest growth between Year 1 and Year 2.

The main principle behind the Pareto chart is the ability to separate the "vital few" from the "trivial many."

The width of each bar in a histogram corresponds to the

SCENARIO 2-14 The table below contains the number of people who own a portable Blu-ray player in a sample of 600 broken down by gender. -Referring to Scenario 2-14, of the females in the sample, ________ percent did not own a portable Blu-ray player.

The width of each class grouping or interval in a frequency distribution should be ________.

SCENARIO 2-3 Every spring semester, the School of Business coordinates a luncheon with local business leaders for graduating seniors, their families, and friends.Corporate sponsorship pays for the lunches of each of the seniors, but students must purchase tickets to cover the cost of lunches served to guests they bring with them.The following histogram represents the attendance at the senior luncheon, where X is the number of guests each graduating senior invited to the luncheon and is the number of graduating seniors in each category. -Referring to the histogram from Scenario 2-3, how many graduating seniors attended the luncheon?

SCENARIO 2-14 The table below contains the number of people who own a portable Blu-ray player in a sample of 600 broken down by gender. -Referring to Scenario 2-14, if the sample is a good representation of the population, we can expect _______ percent of the females in the population will not own a portable Blu-ray player.

SCENARIO 2-14 The table below contains the number of people who own a portable Blu-ray player in a sample of 600 broken down by gender. -Referring to Scenario 2-14, if the sample is a good representation of the population, we can expect _______ percent of the population will be males.

Given below is the scatter plot of the number of employees and the total revenue ($millions)of 20 U.S.companies.There appears to be a positive relationship between total revenue and the number of employees.

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 at least $1,300.

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

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 2-5 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, what is the cumulative relative frequency for the percentage of calls that lasted under 20 minutes?