Home
Class 12
MATHS
The mean of the numbers obtained on thr...

The mean of the numbers obtained on throwing a die having written 1 on three faces, 2 on two faces and 5 on one face is

A

1

B

2

C

5

D

`(8)/(3)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • PROBABILITY

    MODERN PUBLICATION|Exercise Objective Type Question (B. Fill in the Blanks)|15 Videos

  • PROBABILITY

    MODERN PUBLICATION|Exercise Objective Type Question (C. True/False Questions)|5 Videos

  • PROBABILITY

    MODERN PUBLICATION|Exercise EXERCISE 13 (h) (LATQ)|20 Videos

  • MATRICES

    MODERN PUBLICATION|Exercise CHAPTER TEST (3)|12 Videos

  • RELATIONS AND FUNCTIONS

    MODERN PUBLICATION|Exercise CHAPTER TEST (1)|12 Videos

Similar Questions

Explore conceptually related problems

The mean of the numbers obtained on throwing a die having written 1 one three faces, 2 on two faces and 5 on one face is

The mean of the numbers obtained on throwing a die having written 1on three faces,2 on two faces and 5 on one face is (A) 1 (B) 2 (C) 5 (D)

The mean of the numbers obtained on throwing a die having written 1 on two faces 2 on three faces and 4 on one face is....

A cone has one ____ face and one ____ face

There are two die A and B both having six faces. Die A has three faces marked with 1, two faces marked with 2, and one face marked with 3. Die B has one face marked with 1, two faces marked with 2, and three faces marked with 3. Both dices are thrown randomly once. If E be the event of getting sum of the numbers appearing on top faces equal to x and let P(E) be the probability of event E, then P(E) is minimum when x equals to

There are two die A and B both having six faces. Die A has three faces marked with 1, two faces marked with 2, and one face marked with 1, two faces marked with 2, and one face marked with 3. Die B has one face marked with 1, two faces marked with 2, and three faces marked with 3. Both dices are thrown randomly once. If E be the event of getting sum of the numbers appearing on top faces equal to x and let P(E) be the probability of event E, then When x = 4, then P(E) is equal to

Probability of throwing an odd no with an ordinary six faced die is

If X denotes the number obtained on the uppermost face when a fair die is thrown, then E (X) =

If X denotes the number obtained on the uppermost face when a fair die is thrown, then Var (X) =

There are two die A and B both having six faces. Die A has three faces marked with 1 , two faces marked with 2 , and one face marked with 3 . Die B has one face marked with 1 , two faces marked with 2 , and three faces marked with 3 . Both dices are thrown randomly once. If E be the event of getting sum of the numbers appearing on top faces equal to x and let P(E) be the probability of event E , then P(E) is maximum when x equal to

MODERN PUBLICATION-PROBABILITY-Objective Type Question (A. Multiple Choice Questions)
  1. If P(A]B) > P(A), then which of the following is correct:

    Text Solution

    |

  2. If A and B are any two events such that P(A)+P(B)-P( A "and" B)=P(A), ...

    Text Solution

    |

  3. The mean of the numbers obtained on throwing a die having written 1 o...

    Text Solution

    |

  4. Suppose that two cards are drawn at random from a deck of cards. Let ...

    Text Solution

    |

  5. In a box containing 100 bulbs, 10 are defective. The probability that...

    Text Solution

    |

  6. The probability that a student is not a swimmer is 1/5. Then the proba...

    Text Solution

    |

  7. A die is thrown once, then the probability of getting a number greater...

    Text Solution

    |

  8. Let A and B be two events. If P(A) = 0.2, P(B)=0.4, P(A uu B)=0.6, the...

    Text Solution

    |

  9. Let A and B be two events such that P(A)=0.6, P(B)=0.2 and P(A//B)=0.5...

    Text Solution

    |

  10. If E and F are independent events such that 0ltP(E)lt1 and 0ltP(F)lt1,...

    Text Solution

    |

  11. Let 'X' be a discrete random variable. The probability distribution of...

    Text Solution

    |

  12. If X be a random variable taking values x(1),x(2),x(3),….,x(n) with pr...

    Text Solution

    |

  13. If A and B two events such that P(A)=0.2, P(B)=0.4 and P(A cup B)=0.5,...

    Text Solution

    |

  14. An urn contains 6 balls of which two are red and four are black. Two b...

    Text Solution

    |

  15. If E and F are independent events, P(E)=(1)/(2) and P(F)=(1)/(3), then...

    Text Solution

    |

  16. The probability of obtaining an even prime number on each die, when a...

    Text Solution

    |

  17. If P(A)=0.8, P(B)=0.5 and P(B/A)=0.4, then find P(A/B)

    Text Solution

    |

  18. If P(A)7/(13),P(B)=9/(13) and P(AnnB)=4/(13), find P(A/B)dot

    Text Solution

    |

  19. if A and B be two events such that P(A)=1/4, P(B)=1/3 and P(AuuB)=1...

    Text Solution

    |

  20. If P(A)=(1)/(2),P(B)=0, then P(A/B) is :

    Text Solution

    |