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?For each of the following, list the class intervals that would be best for a grouped
Chapter 2, Problem 8(choose chapter or problem)
For each of the following, list the class intervals that would be best for a grouped frequency distribution.
a. Lowest X = 3, highest X = 84
b. Lowest X = 17, highest X = 32
c. Lowest X = 52, highest X = 97
Questions & Answers
QUESTION:
For each of the following, list the class intervals that would be best for a grouped frequency distribution.
a. Lowest X = 3, highest X = 84
b. Lowest X = 17, highest X = 32
c. Lowest X = 52, highest X = 97
ANSWER:Step 1 of 3
a). Lowest X =3, highest X =84
Width of the interval should be relatively simple and it should be equal for the entire class interval. In this example, the difference between lowest and highest value is very large. Hence take width of 10. The first class interval must include the value 3 and last class interval should include the value 84. Therefore, the class interval will be,
Class interval |
0-9 |
10-19 |
20-29 |
30-39 |
40-49 |
50-59 |
60-69 |
70-79 |
80-89 |