Home
Class 12
MATHS
The probability function of a random va...

The probability function of a random variable is defined as

Then E(X) is equal to

Promotional Banner

Topper's Solved these Questions

  • PROBABILITY DISTRIBUTIONS

    PREMIERS PUBLISHERS|Exercise PROBLEMS FOR PRACTICE|40 Videos

  • PROBABILITY DISTRIBUTIONS

    PREMIERS PUBLISHERS|Exercise EXERCISE 11.5|18 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 probability function of a random variable is defined as Then k is

The probability distribution of a random variable X is given as Then the value of p is

If the probability mass function f(x) of a random variable X is find (i) its cumulative distribution hence find (ii) P (X lt= 3) and , (iii) P( X gt=2)

The distribution function F(x) of a random variable X is ……….

The following is a probability density function of a random variable X given by Find (i) The value of k

The probability distribution of a random variable X taking values 1, 2, 3, 4, 5 is given a. find the value of p . b. Find the mean of X c. Find the variance of X

If f(x)={{:(2x, 0 le x le a), (0, "otherwise"):} is a probability density function of a random variable, then the value of a is

If the p.m (probability mass function ) f(x) of a random varibale X is Find P(X le 3)

If f(x)=ae^(-2x)0ltxltinfty is a probability density function of a random variable x then its variance is

PREMIERS PUBLISHERS-PROBABILITY DISTRIBUTIONS-EXERCISE 11.6
  1. Let X be random variable with probability density function f(x)={{:(...

    Text Solution

    |

  2. A rod of length 2l is broken into two pieces at random. The probabilit...

    Text Solution

    |

  3. Consider a game where the player tosses a six sided fair die. If the f...

    Text Solution

    |

  4. A pair of dice numbered 1, 2, 3, 4, 5, 6 of a six-sided die and 1, 2, ...

    Text Solution

    |

  5. A random variable X has binominal distribution with n = 25 and p = 0.8...

    Text Solution

    |

  6. Let X represent the difference between the number of heads and the nu...

    Text Solution

    |

  7. If the function f(x)=1/12 " for " a lt x lt b, represents a probabilit...

    Text Solution

    |

  8. Four buses carrying 160 students from the same school arrive at a foot...

    Text Solution

    |

  9. Two coins are to be flipped. The first coin will land on heads with pr...

    Text Solution

    |

  10. On a multiple-choice exam with 3 possible destructive for each of the ...

    Text Solution

    |

  11. If P{X=0}=1-P{X=1}. If E{X}=3Var(X), then P{X=0} is

    Text Solution

    |

  12. If X is a binomial random variable with expected value 6 and variance ...

    Text Solution

    |

  13. The random variable X has the probability density function f(x)={{:(ax...

    Text Solution

    |

  14. Suppose that X takes on one of the values 0, 1, and 2. If for some con...

    Text Solution

    |

  15. Which of the following is a discrete random variable? I. The number ...

    Text Solution

    |

  16. If f(x)={{:(2x, 0 le x le a), (0, "otherwise"):} is a probability dens...

    Text Solution

    |

  17. The probability function of a random variable is defined as The...

    Text Solution

    |

  18. Let X have a Bernoulli distribution with mean 0.4, then the variance ...

    Text Solution

    |

  19. If in 6 trials, X is a binomial variate which follows the relation 9P(...

    Text Solution

    |

  20. A computer salesperson knows from his past experience that he sells co...

    Text Solution

    |