Uncertainty & error questions

1. Explain why repeating a measurement and taking the average of five separate readings of data will decrease the random error but have no effect on the systematic error.2. A balance has been wrongly calibrated so that it always records a reading that is 1.00 g too high.Explain how, without recalibrating it, the balance could be used to obtain:(a) an inaccurate and precise result for the mass of a piece of magnesium...

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