Question

The content of 6 (500 mL) bottles are measured using a measurement device. The measurements are 493, 502, 504, 499, 488 and 502 mL.

What is accuracy of his measurement device?

	A.	99%
	B.	99.3%
	C.	99.6%
	D.	99.9%

Answer 1

Calculate what percentage of average absolute deviations of the experimental value from the actual value is of actual value which gives error percentage

Accuracy percentage = 100 - Error percentage

Here actual value is 500mL and experimental values are 493, 502, 504, 499, 488 and 502 mL

Average of absolute deviations of the experimental value from the actual vale

Error Percentage

Accuracy Percentage = 100 - 0.934 = 99.066%

Therefore correct option is (A)