Home
Class 12
MATHS
The sum of 10 items is 12 and sum of the...

The sum of 10 items is 12 and sum of their squares is 18, then find the standard deviation ?

Text Solution

Verified by Experts

The correct Answer is:
`3//5`
Promotional Banner

Topper's Solved these Questions

  • MEASURES OF DISPERSION (STATISTICS)

    AAKASH SERIES|Exercise Exercise - 4.1 (Very short Answer Type Questions)|4 Videos

  • MEASURES OF DISPERSION (STATISTICS)

    AAKASH SERIES|Exercise Exercise - 4.1 (Long answer Questions)|1 Videos

  • MEASURES OF DISPERSION (STATISTICS)

    AAKASH SERIES|Exercise Practice Exercise|54 Videos

  • MEAN VALUE THEOREMS

    AAKASH SERIES|Exercise EXERCISE|28 Videos

  • PARABOLA

    AAKASH SERIES|Exercise EXERCISE -3.2 III.|5 Videos

Similar Questions

Explore conceptually related problems

The sum of 10 items is 12 and sum of their squares is 18, then standard deviaiton is

The standard deviation of 15 items is 6 and each item is decreased by 1. Then find the standard deviation of new data.

The mean of four observations is 3. If the sum of the squares of these observations is 48 then their standard deviation is

The standard deviation of 15 items is 6 and each item is decreased by 1. Then the standard deviation of new data is

If the Variance of a data is 12.96, then standard deviation is

The sum of two numbers is k, the least sum of their squares is K^2//2

The sum of two + ve numbers is 20 If the sum of their squares is minimum then one of the number is

If the mean of 10 observations is 50 and the sum of the squares of the deviations of the observations from the mean is 250 , such the coefficient of variation of those observations is

If the mean of 10 observations is 50 and the sum of the squares of the deviations of the observations from the mean is 250, then the coefficient of variation of those observations is