fing the size of clas interval 0-15,15-30 etc
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Upper limit of the first class = 15
Lower limit of the first class = 0
Class size = Upper limit - Lower limit = 15 - 0 = 15
Upper limit of the second class = 30
Lower limit of the second class = 15
Class size = Upper limit - Lower limit = 30 - 15 = 15
Answer:
The size of each class interval here is 15.
Answered by
1
Answer:
class interval
10-20
20-30
30-40
40-50
50-60
10
12
7
7
8
3
(¡) for cumulative frequency
30-40 frequency is 7
(¡¡) size is 11
mid point for cumulative frequency
30-40 is 35
(¡¡¡) range = 70-10=60
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