Exam 2: Picturing Variation With Graphs

Data was 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?

The graph below displays the number of homicides in the city of Flint, Michigan for each of the last three years. A reported interprets this graph to mean that the number of murders in 2010 was more Than twice the number of murders in 2008. Is the reporter making a correct interpretation?

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.

A survey was conducted which asked college students, "What is your favorite type of take-out food? " The results are shown in the graphs below. Use the graphs to answer the question. -Which type of take-out food is least popular? Is this easier to determine with the bar chart or with the pie chart? Why?

The graph below displays the number of applications for a concealed weapons permit in Montcalm County, Michigan, for each of three years. A reported interprets this graph to mean that Applications in 2010 are more than twice the level in 2008. Is the reported making a correct Interpretation?

The bar chart below shows car color for college students at a local community college. Use the bar chart to answer the question. -Write a sentence to compare color preferences or males and females.

Choose the histogram that matches the description. -The data in the histogram summarizes the pitch speed of a sample of 75 pitches for a college pitcher during one season. Which of the following statements best describes the distribution of the Histogram below?

Based on the histogram below, would it be unusual to be on hold for 5 minutes or more at this call center?

The dotplot shows how many times a computer was used daily at a public library during a 30-day period. Use information from the dotplot to answer the question. -Describe the shape of the distribution in context?

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 side-by-side bar graph shows the level of post-secondary education achieved ten years after high school for graduates from the years 1999 and 2001. Use the bar graph to answer the question. -What was the most common response for 1999?

A fitness instructor measured the heart rates of the participants in a yoga class at the conclusion of the class. The data is summarized in the histogram below. There were fifteen people who participated in the class between the ages of 25 and 45.Use the histogram to answer the question. -How many participants had a heart rate between 120 and 130 bpm?

Find the original data set from the stemplot given below. 45 0 0 1 5 46 2 2 3 47 0 8 9 9 9

Find the original data set from the stemplot given below. 45 0 0 1 5 46 2 2 3 47 8 9 9

The distribution of the numbers of times individuals in the 18-24 age group log onto a social networking website during the course of a day tends to be right-skewed.

Choose the histogram that matches the description. -The distribution of heights of adult females tends to be symmetrical.

Use the histogram below to answer the question. The histogram shows the distribution of the number of cell phones owned by 210 households of five or more people with a minimum age of nine. -About what percentage of households own no more than three cell phones?

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.

Choose the histogram that matches the description. -The distribution of heights of adult males tends to be symmetrical.

A used car salesman decides to track the number of cars he sold each week for the past twelve months. Typically, the salesman sells 13 cars per week. During an usually slowweek he sold only 2 cars, but during his best week he sold 29 cars. Predict the shape of thehistogram of the number of cars sold each week.