Home
Class 12
MATHS
In an average , rain falls on 12 days in...

In an average , rain falls on 12 days in every 30 days. The probability that , rain will fall on just 3 days of a given week is

A

`35((1)/(5))^(3)((3)/(5))^(4)`

B

`35((2)/(5))^(3)((3)/(5))^(4)`

C

`35((1)/(5))^(3)((2)/(5))^(4)`

D

`35((1)/(5))^(2)((3)/(5))^(4)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • RANDOM VARIABLE

    AAKASH SERIES|Exercise PRACTICE EXERCISE|34 Videos

  • RANDOM VARIABLE

    AAKASH SERIES|Exercise EXERCISE - I|33 Videos

  • QUADRATIC EQUATIONS & EXPRESSIONS

    AAKASH SERIES|Exercise PRACTICE EXERCISE|88 Videos

  • RANDOM VARIABLES

    AAKASH SERIES|Exercise Exercise 4.4|9 Videos

Similar Questions

Explore conceptually related problems

The probability of raining a day is ………….

The probability of "the last day of a month is Sunday"

Number of accidents on a national highway each day is a poisson variable with an average of three accidents per a day. Find the probability that no accidents will occur on a given day.

Rain fall is measured by

(i) Obtain the probability that the birth days of seven people will fall on seven different days of the week, assuming equal probabilities for the seven days. (ii) What is the probability that the birth days of twelve people will fall in twelve different months (assume equal probabilites of the twelve months)

AAKASH SERIES-RANDOM VARIABLE -EXERCISE - II
  1. The probability that a bomb dropped from a plane strikes the target i...

    Text Solution

    |

  2. An experiment succeeds twice as often as it fails. The probability of ...

    Text Solution

    |

  3. In an average , rain falls on 12 days in every 30 days. The probabilit...

    Text Solution

    |

  4. Suppose A and B are two equally strong table tennis players . The prob...

    Text Solution

    |

  5. The probability that a man can hit a target is 3//4. He makes 5 trials...

    Text Solution

    |

  6. A box contains tickets numbered from 1 to 20. If 3 tickets are drawn o...

    Text Solution

    |

  7. If on an average 1 vessel in every 10 is wrecked, the chance that out ...

    Text Solution

    |

  8. One in 9 ships is likely to be wrecked , when they are set on sail. Wh...

    Text Solution

    |

  9. The probability of happening of an event in a trial is 0.5. The probab...

    Text Solution

    |

  10. The probability that an event does not happen in one trial is 0.8 The ...

    Text Solution

    |

  11. 12 coins are tossed 4096 times. The number of times that one can get a...

    Text Solution

    |

  12. Five coins are tossed 3200 times. The number of times getting exactly ...

    Text Solution

    |

  13. A poisson variate x is such that P(x=2)=9P(x=4)+90.P(x=6) then mean an...

    Text Solution

    |

  14. Suppose on an average 1 house in 1000 in a certain district has a fire...

    Text Solution

    |

  15. A manufacturing concern emplyoing a large number of workers over a per...

    Text Solution

    |

  16. If the number of telephone calls an operator receives between 10.00 pm...

    Text Solution

    |

  17. The probability that an individual suffers a bad reaction from an inje...

    Text Solution

    |

  18. Suppose there are 500 misprints in a book of 750 pages. Assuming that ...

    Text Solution

    |

  19. In a book of 500 pages , it is found that there are 250 typing errors ...

    Text Solution

    |

  20. A firm hires out 3 cars every day. The demand for a car on each day is...

    Text Solution

    |