Sec 3/4 E Math T14-Q37 - Correcting a reported mean

Sec 3/4 E Math T14-Q37 - Correcting a reported mean

Secondary 3
Original parallel to Sec3&4 E Math FA

The mean of \(20\) values was reported as \(18\). One value was recorded as \(25\) instead of \(20\). Calculate the correct mean.

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Answer:\(17.75\).

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