標題:

Maths!!!

發問:

The weight of John is 56.6kg. (a)Find his weight (correct to 1 significant figure , unit : kg) (b)Find the absolute error of the approximate value in (a)? (unit : kg) (c)What is percentage error of the approximate value in (a)? (Give the answer correct to 2 significant figures)

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最佳解答:

(a) John's weight = 60 kg (1 sig. fig.) ===== (b) Absolute error = (60 - 56.6) kg = +3.4 kg ===== (c) Percentage error = (+3.4/56.6) x 100% = +6.0% (2 sig. figs.) =

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