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Answer variants:
61
20
\(\text{Less than }\)\(40\)
\(\text{Less than }\)\(60\)
56
24
\(\text{Less than }\)\(30\)
\(\text{Less than }\)\(50\)
33
50
\(\text{Less than }\)\(70\)
\(\text{Less than }\)\(80\)
Construct a cumulative frequency distribution of less than type for the following data.
 
Class intervalFrequency
Below 3020
30 \(-\) 404
40 \(-\) 509
50 \(-\) 6017
60 \(-\) 706
70 \(-\) 805
 
Answer:
 
Class intervalFrequency