First slide

Accuracy; precision of instruments and errors in measurements

Question

If the percentage errors of A. B, and C are a, b, and c, respectively, then the total percentage error in the product ABC is

Moderate

A

$a b c$
B

$a + b + c$
C

$\frac{1}{a} + \frac{1}{b} + \frac{1}{c}$
D

$a b + b c + c a$

Solution

In a product, percentage errors are added up.

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