Homework: HW 2.2 Save Score: 0.42 of 1 pt 4 of 15 (15 complete) Hw Score: 64.61%
ID: 3209939 • Letter: H
Question
Homework: HW 2.2 Save Score: 0.42 of 1 pt 4 of 15 (15 complete) Hw Score: 64.61%, 9.69 of 15 pts 2.2.9 Question Help Identify the class width, class midpoints, and class boundaries for the given frequency distribution. white blood cell Frequency count of males 2.0-3.9 4.0-5.9 6.0-7.9 8.0-9.9 10.0-11.9 15 What is the class width? (Type an integer or a decimal.) What are the class midpoints? 295,4.95.6.95.8.95.10.95 Type integers or decimals. Use ascending order) What are the class boundaries? (Type integers or decimals. Use ascending order)Explanation / Answer
Class width = 3.9 - 2.0 = 1.9
Class midpoints = (upper limit + lower limit)/2 (you have calculated correctly )
Class boundaries are values halfway between the upper class limit of one class and the lower class limit of the next.
The difference in each case clearly is 0.1 whose half is 0.1 /2 = 0.05
Therefore class boundaries are
2 - 0.05 (special boundary case), 3.9 + 0.05 , 5.9 + 0.05 , 7.9+0.05 , 9.9 + 0.05 , 11.9 + 0.05
1.95 , 3.95, 5.95 , 7.95 , 9.95 , 11.95
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