Home
Class 12
MATHS
Let X and Y be two random varibles . The...

Let X and Y be two random varibles . The relationship E (XY)= E(X) E(Y) holds :

A

Always

B

If (X+Y) = E(X) +E(Y) is true

C

If X and Y are are independent

D

If X cn be obtained from Y by a linear transformation .

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • PROBABILITY

    MODERN PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS (LEVEL - II )|30 Videos
  • PROBABILITY

    MODERN PUBLICATION|Exercise LATEST QUESTIONS FROM AIEEE/JEE EXAMINATIONS|13 Videos
  • PERMUTATIONS AND COMBINATIONS

    MODERN PUBLICATION|Exercise Recent Competitive Questions|6 Videos
  • QUADRATIC EQUATIONS

    MODERN PUBLICATION|Exercise LATEST QUESTIONS FROM AIEEE/JEE EXAMINATIONS|13 Videos

Similar Questions

Explore conceptually related problems

Let X be a discrete random variable. The probability distribution of X is given below : Then E(X) equal to

The solution of (dy)/(dx)+y=e^(-x),y(0)=0 is :

Let x and y be two variables such that x gt 0 and xy =1. Then the minimum value of x+y is

The solution of dy/dx = x.e^(x-y) is

The solution of x dy/dx +y = e^(x) is

Choose the correct answer Suppose that two cards are drawn at random from a deck of cards. Let X be the number of aces obtained. Then the value of E(X) is

Let y(x) be the solution of the differential equaiton : (x log x ) (dy)/(dx) +y=2x log x, (x ge 1) Then y(e) is equal to :

The area of the region enclosed by the curves y=x , x =e y= (1)/(x) and the positive x axis is

The interval in which y = x^(2) e^(–x) is increasing in