mean of marks obtained by 15 students is 63. if marks of two students were read wrongly 73 instead of 78 and 59 instead of 69, find correct mean
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mean of marks obtained by 15 students is 63. if marks of two students were read wrongly 73 instead of 78 and 59 instead of 69, find correct mean
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Answer:
the answer of the question is 78 and 69