Home
Class 12
MATHS
The variance of 20 observations in 5 . I...

The variance of 20 observations in 5 . If each of the observations is multplied ny 2 , find the variance of the resulting observations

Text Solution

Verified by Experts

The correct Answer is:
`2^(2) xx 5`
Promotional Banner

Topper's Solved these Questions

  • MEASURES OF DISPERSION

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise EXERCISE|9 Videos
  • INTEGRATION

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise DAM SURE LAQ - 8 MARKS|9 Videos
  • PARABOLA

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise EXERCISE-3 (b) iii.|5 Videos

Similar Questions

Explore conceptually related problems

The variance of 20 observations is 5. If each observations is multiplied by 2, then the new variance of the resulting observations is

The variance of 50 observations is 7. If each observation is multiplied by 6 and then 5 is subtracted from it, then the variance of the new data is

The median of a set of 9 distinct observations is 20. If each of the largest 4 observations of the set is increased by 2, find the median of the resulting set.

In a set of 2n distinct observations, each of the observations below the median of all the observations is increased by 5 and each of the remaining observation is decreased by 3 . Then the mean of the new set of observations