Chapter 11: Q12. (page 633)
Tell which data display(s) allow you to identify the specified information.
The frequency of an interval.
Histogram is the type of display needed to identify the frequency of an interval.
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You want to make a stem-and-leaf plot of the data values 90, 93, 85, 86, and 74. What numbers would you use as the stems?
Which value is the upper extreme for the data 12, 6, 23, 10?
Use the data to make a frequency table and a histogram.
The rightmost bar of the histogram above appears to be twice as long as any of the other bars. Is the frequency of the 10-12 interval twice as great as the frequency of any other interval? Explain.
A club president records the ages of the members in a club and wants to group the data in intervals of 2 years. Should the president use a stem-and-leaf plot or a histogram? Explain.
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