Home
Class 12
MATHS
If standard deviation of a ravdom variab...

If standard deviation of a ravdom variable `x` is 2 then `var(5x)` is

A

25

B

100

C

50

D

26

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • RANDOM VARIABLE AND ITS DISTRIBUTION

    CHHAYA PUBLICATION|Exercise Comprehension Type|6 Videos
  • RANDOM VARIABLE AND ITS DISTRIBUTION

    CHHAYA PUBLICATION|Exercise Assertion Reason Type|8 Videos
  • RANDOM VARIABLE AND ITS DISTRIBUTION

    CHHAYA PUBLICATION|Exercise Integer Answer Type|5 Videos
  • QUESTIONS PAPER -2019

    CHHAYA PUBLICATION|Exercise WBJEE 2019|45 Videos
  • REAL NUMBERS

    CHHAYA PUBLICATION|Exercise Exercise (Long Answer Type Questions)|10 Videos

Similar Questions

Explore conceptually related problems

If the standard deviation of a variable x is sigma , then standard deviation of variable (a X+b)/c is (a). sigma (b) a/csigma (c) |a/c|sigma (d) (asigma+b)/c

Find the standard Deviation of 6 and 8.

If the mean square deviation of a variable x about 7 is 25 and the mean of x is 10, find var ((x-10)/4) .

The standard deviation of a variate x is sigma The standard deviation of the variable (aX+b)/c : a,b c, are constants, is

If the mean square deviation of a variable x about 3 is 20 and the mean of x is 5, calculate the minimum value of root-mean square deviation of x.

Standard deviation of first 10 natural numbers is

The standard deviation of first 10 natural numbers is

The standard deviation of a set of 50 items is 8. Find the standard deviation, if each item is multiplied by 2.

The standard deviation of a set of 30 items is 9.5 Find the standard deviation if every items is decreased by 5.