Home
Class 12
MATHS
Given E(X+C)=8 and E(X-C)=12 The value o...

Given E(X+C)=8 and E(X-C)=12 The value of C is

A

`-2`

B

4

C

`-4`

D

2

Text Solution

Verified by Experts

The correct Answer is:
a
Promotional Banner

Topper's Solved these Questions

  • PROBABILITY DISTRIBUTIONS

    PREMIERS PUBLISHERS|Exercise EXERCISE 11.6|20 Videos

  • ORDINARY DIFFERENTIAL EQUATIONS

    PREMIERS PUBLISHERS|Exercise PROBLEMS FOR PRACTICE (ANSWER THE FOLLOWING QUESTIONS )|22 Videos

  • THEORY OF EQUATIONS

    PREMIERS PUBLISHERS|Exercise Problems for practice (Answer the following)|21 Videos

Similar Questions

Explore conceptually related problems

The function f(x)=x(x+3)e^(-(1/2)x) satisfies the conditions of Rolle's theorem in (-3,0). The value of c, is

If f^(prime)(x)=f(x)+int_0^1f(x)dx ,gi v e nf(0)=1, then the value of f((log)_2 2) is (a) 1/(3+e) (b) (5-e)/(3-e) (c) (2+e)/(e-2) (d) none of these

If lim_(xrarroo) ((x+c)/(x-c))^(x)=4 then the value of e^(c) is

If cos e c^(-1)(cos e cx) and cos e c(cos e c^(-1)x) are equal functions, then the maximum range of value of x is

If a,b,c are in H.P , b,c,d are in G.P and c,d,e are in A.P. , then the value of e is

Given a ,b ,c are in A.P. b ,c , d are in G.P. and c ,d ,e are in H.P. If a=2and e=18 , then the sum of all possible value of c is ________.

Given a=x//(y-z), b=y//(z-x),a n dc=z//(x-y),w h e r ex , y , za n dz are not all zero, then the value of a b+b c+c a is 0 b. 1 c. -1"" d. none of these

If intx^2dote^(-2x)dx=e^(-2x)(a x^2+b x+c)+d , then the value of |a/(b c)| is______

If: ("lim")_(xrarr1)(1+a x+b x^2)^(c/((x-1)))=e^3, then the value of b c is___

If a,b,c be three positive numbers in A.P. and E=(a+8b)/(2b-a)+(8b+c)/(2b-c) , then a value of E can be

PREMIERS PUBLISHERS-PROBABILITY DISTRIBUTIONS-PROBLEMS FOR PRACTICE
  1. IfF(x)=(A)/(pi)=(1)/(16+x^(2))-inftyltxltinfty is a pdf of a continous...

    Text Solution

    |

  2. In a binomial distribution with mean 4 and variance 16/5 then p is

    Text Solution

    |

  3. Given E(X+C)=8 and E(X-C)=12 The value of C is

    Text Solution

    |

  4. Var(5x-2)=?if Var(X)=1

    Text Solution

    |

  5. If f(x)=k(2x-x^(2)),0lexle1 is probability density function of a conti...

    Text Solution

    |

  6. In 16 throws of a die getting an even number is called a success then ...

    Text Solution

    |

  7. X is a random variable taking the values 3,4 and 12 with probabilites ...

    Text Solution

    |

  8. If X is a discrete random variable which takes the values which takes ...

    Text Solution

    |

  9. Variance =20 and E(X^(2)) =276 for discrete random variable then the m...

    Text Solution

    |

  10. A random variable X has the following probability distribution ...

    Text Solution

    |

  11. A bag contain 6 white and 4 red balls if 3 balls are drawn at random t...

    Text Solution

    |

  12. 2 cards are drawn from a well shuffled of 52 cards the probability tha...

    Text Solution

    |

  13. In 6 trails x is binomial variate which follows 4P(X=4)=P(X=2) then th...

    Text Solution

    |

  14. The probability function of a random variable is defined as Then...

    Text Solution

    |

  15. If f(x)=1/9x^(2)0lexlta is a probability density function of random va...

    Text Solution

    |

  16. If the function f(x)=1/10 for a lt x lt b represent a probability den...

    Text Solution

    |

  17. A random variable X has binomial distribution with n=36 and p =0.8 t...

    Text Solution

    |

  18. A pari of dice numbered 1,2,3,4,5,6 of a six faced die each are rolled...

    Text Solution

    |

  19. The mean and variance of a binomial variate x are respectively 2 and 1...

    Text Solution

    |

  20. If X is a bernoulli 's random variable with parameter p then the varia...

    Text Solution

    |