Exam 2: Picturing Variation With Graphs

Data were collected on hand grip strength of adults. The histogram below summarizes the data. Which statement is true about the distribution of the data shown in the graph?

Which of the following statements best describes the distribution and variability of the histogram below? The data in the histogram summarizes length of time on hold for a collection of customers calling a repair call center.

The histogram below shows the distribution of pass rates on a swimming test of all children who completed a four week summer swim course at the local YMCA. How many of the courses had a pass rate less than 40 percent?

Which of the following statements about bar graphs is true?

Compare and describe the shape of the distributions.

Describe the shape of the distribution in context?

How many participants had a heart rate between 120 and 130 bpm?

Compare and contrast the important similarities and differences between bar charts and histograms. In what context should a bar chart be used? Explain why there are gaps between the bars on a bar chart. In what context should a histogram be used? Explain why there are no gaps between the bars on a histogram.

The histogram below shows the distribution of pass rates on a swimming test of all children who completed a four week summer swim course at the local YMCA. What is the typical pass rate for the swim test?

The following graphic was used to visually summarize the following statement made by Incredi- gro Fertilizer Company in a recent newspaper advertisement: "Our new Incredi- gro Fertilizer for flowers will grow your flowers two times faster than water alone."

The distribution of test scores for a group of adults on a written driving exam following a refresher course tends to be left- skewed.

A collection of twenty college students was asked how much cash they currently had in their possession. The data is summarized in the stemplot below. Typically, how much money does a student have in his or her possession?

The histogram below displays the distribution of the length of time on hold, for a collection of customers, calling a repair call center. Use the histogram to select the true statement.

The following graphic was used to visually summarize the following statement made by Supertuf Bicycle Tire Company in a recent magazine advertisement: "Our patented Supertuf bicycle tire design lasts twice as long as the leading competitor's tire design." Does the graphic correctly represent the statement made in the advertisement?

Which of the following statements about bar graphs is true?

A collection of twenty college students was asked how much cash they currently had in their possession. The data is summarized in the stemplot below. How many students had between forty and fifty dollars in their possession?

According to the histogram, about how many households own four or more cell phones?

Report the mode for males and females.

For twenty days a record store owner counts the number of customers who purchase an album by a certain artist. The data and a dotplot of the data are shown below: Data set: 1, 3, 4, 4, 5, 6, 7, 2, 3, 4, 4, 5, 6, 8, 2, 3, 4, 5, 6, 7, 9 Which of the following statements can be made using the given information?

Did one group (males or females)show more variability in car color?