the classes which are in the form of 30-40,40-50,50-60......are called which classes
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Answer:
Class intervals frequency more than type
cumulative frequency
0-10 2 50
10-20 12 50-2=48
20-30 22 50-2-12=36
30-40 8 50-2-12-22=14
40-50 6 50-2-12-22-8=6
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