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Chapter 11: Q. 13 (page 614)

Use the data to make a frequency table and a histogram.

66,78,91,42,45,88,69,73,76,80,50,63,57,54,71,66

Short Answer

Expert verified

The frequency table and the histogram are as follows:

Intervals

Frequency

40鈭�60

5

60鈭�80

7

80鈭�100

3

Step by step solution

01

Step 1. Given Information.

The provided numbers are,

66,78,91,42,45,88,69,73,76,80,50,63,57,54,71,66

02

Step 2. Frequency Table.

Make intervals of equal size for the provided data. Record the interval in which a particular data value lies by using the tally marks. For each interval, count the number of tally marks and write the frequency.

Intervals

Tally Marks

Frequency

40鈭�60

||||

5

60鈭�80

|||||||

7

80鈭�100

|||

3

03

Step 3. 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.

04

Step 3. Conclusion.

The frequency table and the histogram are as follows:

Intervals

Frequency

40鈭�60

5

60鈭�80

7

80鈭�100

3

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Most popular questions from this chapter

The stem-and-leaf plot shows the times (in minutes) for 30 men who completed the 2002 Boston Marathon using a wheelchair.

8369033561000133333336911123991212499133Key:8|3=83minutes

  1. What was the fastest time?
  2. Find the median of the times.
  3. What percent of the participants finished the race in less than 2 hours?
The fastest female wheelchair time in the marathon was 1 hour 46 minutes. How does this time compare with the times of the 30 male participants?

Make an ordered stem-and-leaf plot of the data.

3.23,3.01,2.68,3.16,2.88,3.11,2.55,3.19,2.56,3.21,2.66,3.50,2.66

How can you tell which interval on a histogram has the greatest frequency?

In Exercises 6-8, tell whether the data are numerical or categorical. The tell which data display(s) you would use to display the data. Explain your reasoning.

A coach recorded the number of goals scored by each member of a hockey team.

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鈥檚 and women鈥檚 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.
See all solutions

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