Physics, asked by Anonymous, 4 months ago

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.a
2.3a
3.a/3
4.2a

Answers

Answered by happiestnehajain

0

Answer:

a/3

Explanation:

as no of observations increases so error dec

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