please solve my problem calculate the mean of the following data , using direct method :
Class - 23-35 , 35- 45 , 45-55 , 55-65 , 65-75
Frequency - 6 , 10 , 8 , 12 , 8
pleas solve this problem please please
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One thing is misprint in the question that is 23. You have to write 23 as 25 .
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