Home
Class 12
MATHS
If X is the sum of the number when two d...

If X is the sum of the number when two dice are rolled , then mean variance are

A

`5//2, 5//4`

B

`4, sqrt2`

C

`4, 2.18`

D

`7, 5.83`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • THEORETICAL DISTRIBUTIONS

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 2 (SPECIAL TYPE QUESTIONS) CHOOSE THE CORRECT ANSWER FROM THE ALTERNATIVES 1.2.3 OR 4 GIVEN (SET -1)|4 Videos

  • THEORETICAL DISTRIBUTIONS

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 2 (SPECIAL TYPE QUESTIONS) CHOOSE THE CORRECT ANSWER FROM THE ALTERNATIVES 1.2.3 OR 4 GIVEN (SET -2)|3 Videos

  • THEORETICAL DISTRIBUTIONS

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 2 (SPECIAL TYPE QUESTIONS) CHOOSE THE CORRECT ANSWER FROM THE ALTERNATIVES 1.2.3 OR 4 GIVEN (SET -4)|5 Videos

  • THE PLANE

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 2 (SPECIAL TYPE QUESTIONS) SET 4|4 Videos

  • THEORY OF EQUATIONS

    DIPTI PUBLICATION ( AP EAMET)|Exercise SET - 4|4 Videos

Similar Questions

Explore conceptually related problems

If X is the number on the die , when a die is rolled, then mean and standard deviation are

Find the probability of setting a sum of the number on them is 9, when two dice are rolled at a time.

If X is the number of heads getting when five coins are tossed, then mean and variance are

The probability that the sum of two numbers appearing on the top of the dice is 13,when two dice are rolled at the same time is…………

Find the probability of getting a sum of the number on them is 8, when 3 dice are rolled at a time.

Find the probability of getting sum 7 when two dice are rolled

Two dice are rolled and the probability distribution of the sum of the numbers on the dice is formed. Find mean of the sum.

DIPTI PUBLICATION ( AP EAMET)-THEORETICAL DISTRIBUTIONS-EXERCISE 1 (CHOOSE THE CORRECT ANSWER FROM THE ALTERNATIVE 1,2,3 OR 4 GIVEN )
  1. If X is the number of heads getting when 8 coins are tossed , then mea...

    Text Solution

    |

  2. If X is the number on the die , when a die is rolled, then mean and st...

    Text Solution

    |

  3. If X is the sum of the number when two dice are rolled , then mean var...

    Text Solution

    |

  4. In a binomial distribution n=12, p=1//3. Then mean and variance are

    Text Solution

    |

  5. Two coins whose faces are market 1 and 2 are tossed. What is mean valu...

    Text Solution

    |

  6. Four bad apples are mixed accidentally with 20 good apples. Probabilit...

    Text Solution

    |

  7. In a binomial distribution n=20, q=0.75. Then mean =

    Text Solution

    |

  8. For binomial distribution n=10, q=0.4, then mean is

    Text Solution

    |

  9. If a binomial distribution have parameters 9, 1//3 then P(X=4)=

    Text Solution

    |

  10. In a binomial distribution, mean is 5 and the variance is 4 . The numb...

    Text Solution

    |

  11. If the mean and variance of a binomial distribution are 15//4 and 15//...

    Text Solution

    |

  12. If a binomial distribution has mean 2.4 and variance is 1.44, then n=

    Text Solution

    |

  13. If a binomial distribution has mean 20 and variance is 15, then p=

    Text Solution

    |

  14. In a binomial distribution n=400, p=1//5, It's standard deviation is

    Text Solution

    |

  15. If for a binomial distribution the mean is 6 and the standdard deviati...

    Text Solution

    |

  16. For a binomial distribution bar x=4, sigma=sqrt3 Then P(X=r)=

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  19. The mean and standard deviation of a binomial variate X are 4 and sqrt...

    Text Solution

    |

  20. If the mean and variance of a binomial variable X are 2 and 1 respecti...

    Text Solution

    |