Which of the following statements is incorrect? (a) Every measurement by measuring instrument \(...

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Which of the following statements is incorrect?
(a) Every measurement by measuring instrument
\( \mathrm{P} \) has some error.

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(b) A measurement can have more accuracy but less precision and vice versa.
(c) Every calculated quantity that is based on measured values has some error.
(d) The magnitude of the difference between the true value of the quantity and the individual measurement value is called the relative error of the measurement.
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