The correct option is
C 33The above table represents the given data.Let us take the assumed mean, a=25We know that, by assumed mean method, the mean of the distribution is given by:
¯x=a+∑fidi∑fi
∴ ¯x=25+[52065]=25+8
¯x=33
Hence, the mean of the given distribution, by assumed mean method, is 33.
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