Questions from Statistics

Q: The Bureau of Labor Statistics tracks data on the percentage of jobs

The Bureau of Labor Statistics tracks data on the percentage of jobs that require various levels of education. The 2016 Entry Level Education data are displayed in the following bar chart and pie char...

Q: Data on obesity rates for adults in the United States are displayed

Data on obesity rates for adults in the United States are displayed in the bar plot for three age groups. (Source: 2017 World Almanac and Book of Facts) a. Which age group typically has the highest ra...

Q: Data on the percentage of adults living in the United States who

Data on the percentage of adults living in the United States who meet the federal aerobic fitness (AF) and muscle-strengthening (MS) standards are displayed in the bar plot. (Source: 2017 World Almana...

Q: The following table gives the percent of the market controlled by the

The following table gives the percent of the market controlled by the most popular Internet browsers in 2016. Sketch or otherwise create an appropriate graph of the distribution and comment on its imp...

Q: The following table gives the number of commercial U.S.

The following table gives the number of commercial U.S. radio stations for the four most popular formats. Sketch or otherwise create an appropriate graph of the distribution and comment on its importa...

Q: A sample of students were questioned to determine how much they would

A sample of students were questioned to determine how much they would be willing to pay to see a movie in a theater that served dinner at the seats. The male students responded (in dollars): 10, 15, 1...

Q: One of the authors wanted to determine the effect of changing answers

One of the authors wanted to determine the effect of changing answers on multiple-choice tests. She studied the tests given by another professor, who had told his students before their exams that if t...

Q: The pie chart reports the number of hours of sleep “last

The pie chart reports the number of hours of sleep “last night” for 118 college students. What would be a better type of graph for displaying these data? Explain wh...

Q: The following graph shows the ages of females (labeled 1)

The following graph shows the ages of females (labeled 1) and males (labeled 0) who are majoring in psychology in a four-year college. a. Is this a histogram or a bar graph? How do you know? b. What t...

Q: The accompanying graph is a special histogram with additional information; it

The accompanying graph is a special histogram with additional information; it was made using StatCrunch. People who studied music as children were asked how many hours a day they practiced when they w...