Home
Class 12
MATHS
Prove that E(x-barx)=0 where barx = mea...

Prove that `E(x-barx)`=0 where `barx` = mean of a random variable x

Promotional Banner

Topper's Solved these Questions

  • RANDOM VARIABLE AND ITS DISTRIBUTION

    CHHAYA PUBLICATION|Exercise Short Answer Type Questions|17 Videos

  • RANDOM VARIABLE AND ITS DISTRIBUTION

    CHHAYA PUBLICATION|Exercise Long Answer Type Questions|10 Videos

  • RANDOM VARIABLE AND ITS DISTRIBUTION

    CHHAYA PUBLICATION|Exercise Multiple Choice Type Questions|6 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

The variance of a random varibale x is defined by the expected value of (x-barx)^(2) where bar x is the mean of x prove that variance (x) = E(x^(2))-{E(x)}^(2)

prove that E(ax+b)=aE(x)+b where a and b are constants

Mean or mathematical expectation of random variable

Choose the correct alternative : If x and y are random variables with expectations 3 and 5 respectively, then expectation of (3x - 5y) is-

Answer the following questions (Alternatives are to be noted): If a random variable X follows binomial distribution with mean = 2 and E(x^2) = 28/5 then find P(x != 0)

Answer the following questions (Alternatives are to be noted): If a random variable X follows binomial distribution with mean = 2 and E(x^2) = 28/5 , find P(x != 0).

Choose the correct alternative : [MCQ] For a random variable x the relation between E(X^2) squareE^2 (x) .

Answer the following questions (Alternatives are to be noted): For a random variable X, show that [E (x^2)]^(1/2) ge E(x) .

Choose the correct alternative : If a random variable x - Bin (n,p) then the maximum value of variánce of x will be-

Prove that barx_1 < barx < barx_2 where the symbols have their usual meanings.