Data Charts and Graphs

A survey of 500 teenagers was taken to see which sport was their favorite to watch on television. The pie chart below displays the results. Choose the correct data (numbers of teenagers) from which the pie chart was constructed.

• Basketball, 190; football, 120; hockey,

  90; soccer, 80; other, 20

• Basketball, 120; football, 190, hockey,

  90; soccer, 80; other, 20

• Basketball, 20; football, 90, hockey, 80; soccer, 190; other, 120

• Basketball, 240; football, 380, hockey,

  160; soccer, 180; other, 40

• Basketball, 120; football, 190, hockey,

  80; soccer, 90; other, 20

__________ identify the frequency of events or categories in decreasing order of frequency of occurrence

• Time-series graphs

• Bar graphs

• Pareto charts

• Ogives

• Circle Graphs

__________ display how data change over time. They are best if the units of time are consistent in a given plot

• Time-series graphs

• Bar graphs

• Pareto charts

• Ogives

• Pie Graphs

__________ display cumulative frequencies. They are especially useful for quickly determining the number of data values above or below a specified level.

• Time-series graphs

• Bar graphs

• Pareto charts

• Ogives

• Circle Graphs

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• 
• 
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What type of graph is shown?

• Frequency Histogram

• Relative Frequency Histogram

• Ogive

• Line graph

Attached is a time series graph of the population change in a British town over several decades. Between what two decades did the population stay approximately the same?

• 1981-1991

• 1951-1961

• 1921-1931

• 1931-1941

Mx. Manager at your new job receives the attached Pareto chart. They immediately begin to work on a training program to decrease the high turnover, saying that the turnover is a very important issue in unsatisfactory customer service. Are they correct?

• Yes, most of the dissatisfaction from the customers stems from the high turnover.

• Yes, working on the turnover is always a good idea.

• No, the high turnover only represents 5% of the customer service survey results about dissatisfaction. They should really concentrate on training customer service associates, since "Lack of training" is the most common issue.

• No, turnover isn't an issue.

According to the ogive, what is the approximate number of college students who were surveyed?

• 80

• 100

• 120

• 350

According to the ogive, what value most closely represents a cumulative frequency of 60% (60th percentile)?

• 40

• 47

• 52

• 55