Question

The random error in the arithmatic mean of 100 obswrvations is x,then random error in the arithmatic mean of 400 observations would be :
i)4x ii)x/4 iii)2x iv)x/2
guys please answer it

Answer 1

The answer is 4x

400=4*100and error in 100observation =x

means in 400=4*xmeans 4x

Therefore the answer is 4x

Hope it helps you Mark as brainliest

Answer 2

The random error in the arithmetic mean of 100 observations is x,then random error in the arithmatic mean of 400 observations would be x/4.

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