Home
Class 12
MATHS
If X~B(n,p) with n=10,p=0.4, then E(X^(2...

If `X~B(n,p)` with `n=10,p=0.4`, then `E(X^(2))=`

A

4

B

2.4

C

3.6

D

18.4

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • BINOMIAL DISTRIBUTION

    TARGET PUBLICATION|Exercise EVALUTION TEST|12 Videos
  • BINOMIAL DISTRIBUTION

    TARGET PUBLICATION|Exercise CRITICAL THINKING|20 Videos
  • APPLICATIONS OF DERIVATIVES

    TARGET PUBLICATION|Exercise EVALUATION TEST|20 Videos
  • CONTINUITY

    TARGET PUBLICATION|Exercise Evaluation Test|10 Videos

Similar Questions

Explore conceptually related problems

If X ~ B (n,p) with n=10 , p = 0.4 the E (X^(2 ))=?

Given that X ~ B (n, P) . If n = 10, P = 0.4 then E(X) = ...............

Given X~ B (n,P) If n= 10 and p=0.4 , find E(X) and Var (X) .

For X ~ B (n,p), n = 10, E (X) = 5, then Var (X) =

If X to B ( n= 10,p=0.5) then : p(X ge 9)= …

For X ~ B (n,p), n = 10, E (X) = 5, then p =

Let X~B(n,p) , if E(X)=5,Var(X) =2.5 then P(X lt 1) is equal to

Answer the following questions: If X rarr B(n,p) and n = 10. E(X)= 5 , then find the value of p.

Given X ~ B(n,p) If n= 20,, E(x)= 10 , Find p, Var(X) and S.D (X)

TARGET PUBLICATION-BINOMIAL DISTRIBUTION-COMPETITIVE THINKING
  1. A fair coin is tossed n times. if the probability that head occurs 6 t...

    Text Solution

    |

  2. One hundred identical coins, each with probability p , of showing up h...

    Text Solution

    |

  3. A coin is tossed 2n times. The change that the number of times one get...

    Text Solution

    |

  4. An experiment succeeds twice as often as it fails. The probability tha...

    Text Solution

    |

  5. A bag contains 2 white &4 black balls. A ball is drawn 5 times, each b...

    Text Solution

    |

  6. The items produced by a firm are supposed to contain 5% defective item...

    Text Solution

    |

  7. An unbiased die with faced marked 1, 2, 3, 4, 5, and 6 is rolled four ...

    Text Solution

    |

  8. A die is thrown four times. The probality of getting perfect square in...

    Text Solution

    |

  9. Probability of guessing correctly atleast 7 out of 10 answers in a 'T...

    Text Solution

    |

  10. A box contains 15 green and 10 yellow balls. If 10 balls are randomly ...

    Text Solution

    |

  11. The probability that an event A happens in one trial of an experiment,...

    Text Solution

    |

  12. If X~B(n,p) with n=10,p=0.4, then E(X^(2))=

    Text Solution

    |

  13. The mean and variance of a binomial distribution are 6 and 4 respecti...

    Text Solution

    |

  14. A r.v. X~B (n, p). If values of mean and variance of X are 18 and 12 r...

    Text Solution

    |

  15. The mean and variance of a random variable X having a binomial distrib...

    Text Solution

    |

  16. The mean and variance of a binomial distribution are 8 and 4 respectiv...

    Text Solution

    |

  17. The mean and the variance of a binomial distribution are 4 and 2 respe...

    Text Solution

    |

  18. Let X ~ B (n,p) , if E (X ) = 5 , "Var" (X ) =2.5 then p...

    Text Solution

    |

  19. If X is a binomial variate with mean 6 and variance 2, then the value ...

    Text Solution

    |

  20. In a binomial distribution the probability of getting a success is 1/4...

    Text Solution

    |