Home
Class 12
MATHS
The median of a set of 9 distinct observ...

The median of a set of 9 distinct observations is 20.5 If each of the largest 4 observations of the set is increased by 2, then the median of the new set :

A

is decreased by 2

B

it twice the original median

C

remains the same as that of the original set

D

is increased by 2

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • UNIT TEST PAPER NO.3

    MODERN PUBLICATION|Exercise ASSERTION-REASON & COLUMN MATCHING TYPE QUESTIONS (SECTION-A ASSERTION -REASON TYPE QUESTIONS)|13 Videos
  • UNIT TEST PAPER NO.3

    MODERN PUBLICATION|Exercise ASSERTION-REASON & COLUMN MATCHING TYPE QUESTIONS (SECTION-B COLUMN MATCHING TYPE QUESTIONS)|4 Videos
  • UNIT TEST PAPER NO. 6 (THREE - DIMENSIONAL GEOMETRY, VECTORS & PROBABILITY)

    MODERN PUBLICATION|Exercise Select the correct answer|25 Videos
  • VECTOR ALGEBRA

    MODERN PUBLICATION|Exercise RECENT COMPETITIVE QUESTION|11 Videos

Similar Questions

Explore conceptually related problems

The mean of a set of observations is bar(x) . If each observation is divided by alpha, alpha ne 0 and then is increased by 10, then the mean of the new set is :

The mean of a set of numbers is bar(x) . If each number is increased by lambda , then mean of the new set is :

If each observation of a raw data, whose variance is sigma^(2) is multiplied by lambda , then the variance of the new set is :

The mean of the data set comparising of 16 observations is 16. If one of the observations valued 16 is deleted and three new observations valued 3, 4 and 5 are added to the data, then the mean of the resultant data is :

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

The mean of the data set somprising of 16 doeservatins is 16.If oen of the observation valued 16 is delected and three new observations valued 3,4 and 5 are added to the data then the mean of the resultant data is :

The mean and median of 100 observations are 50 and 52 respectively. The value of the largest observation is 100. It was later found that it is 110 not 100. Find the true mean and median.

The mean and standard deviation of six observation are 8 and 4 respectively. If each observation is multiplied by 3, Find the new mean and new standard deviation of the resulting obervations.

The number of non empty subsets of the set {1,2,3,4} is