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Q.

The thickness of a glass plate is measured to be 2.17 mm, 2.17 mm and 2.18 mm at three different places. Find the average thickness of the plate from this data. (in mm)

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answer is 2.17.

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Detailed Solution

The average thickness of the plate if given by $\frac{2.17 + 2.17 + 2.18}{3} = 2.1733 \dots$

$2.1733 ≅ 2.17 mm$ upto 3 significant figure.

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The thickness of a glass plate is measured to be 2.17 mm, 2.17 mm and 2.18 mm at three different places. Find the average thickness of the plate from this data. (in mm)