Question

find percentage error of 1.22,1.23,1.26,1.21,1.25,1.24.

Answer 1

The mean of the above values will give the true value of the experiment. Mean is 1.235 but we round it of to 1.23 due to sgnificant figures . Now we find mean ofdelta of these values given by mod of true value-value .
Delta mean is .01percentage error is given by delta a/true a.

Percentage error is 0.81 %


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