Question
Asked Dec 28, 2019
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In Exercises 5–8, identify the class width, class midpoints, and class boundaries for the given frequency distribution. Also identify the number of individuals included in the summary. The frequency distributions are based on real data from Appendix B.

Blood Platelet Count
of Males
Frequency
0-99
100-199
51
200-299
90
300-399
10
400-499
500-599
600-699
1
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Blood Platelet Count of Males Frequency 0-99 100-199 51 200-299 90 300-399 10 400-499 500-599 600-699 1

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Expert Answer

Step 1

Class width:

The class width is the distance between two successive lower limits of class intervals.

The formula for class width is as follows:

Statistics homework question answer, step 1, image 1
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Step 2

Class midpoints:

The midpoints of the classes are termed as class midpoints. Each class midpoint is the average of the upper and the lower limits of a class interval.

The formula for midpoint is,

Statistics homework question answer, step 2, image 1
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Step 3
Statistics homework question answer, step 3, image 1
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