Question

vi) In a workshop a worker measures the length
of a steel plate with a Vernier callipers
having a least count 0.01 cm. Four such
measurements of the length yielded the
following values: 3.11 cm, 3.13 cm, 3.14
cm, 3.14 cm. Find the mean length, the
mean absolute error and the percentage
error in the measured value of the
length

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Answer 1

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