The class marks of a frequency distribution are 15, 20, 25... find the class corresponding to the class mark 15.
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14.5-15.5
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ansnjwkddeekdkkjd
Answered by
1
14.5-15.5
19.5-20.5
24.5-25.5
is the class mark of a frequency distribution
19.5-20.5
24.5-25.5
is the class mark of a frequency distribution
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