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Chapter 11: Q. 19 (page 615)

Make a histogram from the stem-and-leaf plot. Don not use the same intervals in your histogram as are used in the stem-and-leaf plot.

913578891022223778911357121256678888key:9|1=9.1

Short Answer

Expert verified

The histogram is,

Step by step solution

01

Step 1. Given Information.

The provided stem-and-leaf plot is

913578891022223778911357121256678888key:9|1=9.1

02

Step 2. Data Values.

Write the data values by converting the stem-and-leaf plot.

9.1,9.3,9.5,9.7,9.8,9.8,9.9,10.2,10.2,10.2,10.2,10.3,10.7,10.7,10.8,10.9,11.3,11.5,11.7,12.1,12.2,12.5,12.6,12.6,12.7,12.8,12.8,12.8,12.8

03

Step 3. Frequency Table.

Make intervals of equal size for the provided data. For each interval, count the number of tally marks and write the frequency.

Intervals

Frequency

9.1−10.1

7

10.1−11.1

9

11.1−12.1

3

12.1−13.1

10

04

Step 4. Histogram.

Draw the horizontal and vertical axes. Label the intervals on the horizontal axis and the frequencies on the vertical axis.

Construct a bar to show the frequency of each interval.

05

Step 5. Conclusion.

The histogram is,

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Most popular questions from this chapter

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.

You ask the first 30 people coming out of a movie theatre what type of movie they prefer. Is your sample likely to represent the population of all moviegoers? Explain.

Write the fraction as a percent.

58

The results of the top ten distances (in meters) for men and women in a javelin competition are listed below.

Men:87.00,92.80,85.52,89.95,86.46,83.64,91.31,81.80,80.56,82.82Women:63.11,61.01,65.78,58.45,69.53,61.60,62.08,64.69,61.94,60.91

  1. Make frequency tables for both the men’s and women’s distances.
  2. Use the frequency tables you made in part (a) to make histograms for the two sets of the data.
  3. What conclusions can you make from the distributions of the data.

The box-and-whisker plots below show the ages of the players on the New York Yankees and the Texas Rangers baseball teams during the 2002 season.

  1. Compare the median, range, and interquartile range for the two teams.
  2. About what percent of the Yankees are less than 31 years old? About what percent of the Rangers are less than 31 years old?

Which team would you say is the “older” team? Explain.
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