Home
Class 11
MATHS
In a series of 2n observations, half of...

In a series of `2n` observations, half of them equal `a` end remaining half equal `-a.` If the S.D. of the observationsis `2,` then `|a|` equals (1) `1/n` (2) `sqrt2` (3) `2` (4) `sqrt2/n`

Promotional Banner

Similar Questions

Explore conceptually related problems

In a series of 2n observations , half of them equal a and remaining half equal - a . If the standard deviation of the observations is 2, then |a| equals

In a series of 2n observations, half of them equal to a and remaining equal to b. If the standard deviation of the observations is 2, then |a| equals :

In a series of 2n observations, half of them equals to a and remaining half equals to -a. If the standard deviation of the observations is 2, then find |a|

In a series of 2n observations, half of them equals to a and remaining half equals to -a. If the standard deviation of the observations is 2, then find |a|.

In a series of 2n observations, half of them equals to a and remaining half equals to -a. If the standard deviation of the observations is 2, then find |a|.

In a series of 2n observations, half of them are equal to a^(2) and the remaining half are equal to -a^(2) . If the standard deviation of the observation is 2, then |a| is equal to

In a series of 2n observations, half of them are equal to a^(2) and the remaining half are equal to -a^(2) . If the standard deviation of the observation is 2, then |a| is equal to

A series are 2n observations. The half of them is a and the reamaining half is -a . If their standard deviation is 2 then |a| = ………