Question

Heya✌️❤️✌️❤️


the random error in the arithmetic means of 100 observation is x,then random error in the arithmetic mean of 400 observation would be:-

1)4x
2)1/4x
3)2x
4)1/2x


dont spamm❎​

Answer 1

according to question ,there are arithmetic.means of 100 is x ,

then 400=4x

Answer 2

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