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The random error in the arithmetic mean ...

The random error in the arithmetic mean of 50 observations is 'a', then the random error in the arithmetic mean of 200 observations would be ............

A

` 4a `

B

`16a^(2)`

C

`a/4`

D

`a/2`

Text Solution

Verified by Experts

The correct Answer is:
C
`a/4`
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FULL MARKS-NATURE OF PHYSICAL WORLD AND MEASUREMENT -ADDITIONAL QUESTIONS SOLVED (MULTIPLE CHOICE QUESTIONS)
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