Math, asked by nasmaj7884, 1 year ago

The average height of 30 students is 150cm. It was detected later that one value of 165cm was wrongly copied as 135cmfor the computation of mean . Find the correct mean

Answers

Answered by Ayisha1

17

incorrect height of 60 students =150×30 =4,500

correct height =4500-135+165=4530

correct mean=4530÷30=151

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