Which of the following measurement is more accurate 1 40 m 3 400 x 10 m 2 0 04 m 4 4 x 10 m If the random error in the

Question

Which of the following measurement is more accurate 1 40 m 3 400 x 10 m 2 0 04 m 4 4 x 10 m If the random error in the arithmetic mean of 50 observations is a then the random error in the mean of 150 observations would be 1 s 2 3

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