Home
Class 12
MATHS
A multiple choice examination has 5 ques...

A multiple choice examination has 5 questions. Each question has three alternative answers of which exactly one is correct. The probability that a student will get 4 or more correct answers just guessing is

A

`(10)/(3^(5))`

B

`(17)/(3^(5))`

C

`(13)/(3^(5))`

D

`(11)/(3^(5))`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • PROBABILITY

    VMC MODULES ENGLISH|Exercise JEE ADVANCED (ARCHIVE)|102 Videos
  • PROBABILITY

    VMC MODULES ENGLISH|Exercise NUMERICAL VALUE TYPE FOR JEE MAIN|15 Videos
  • PERMUTATION & COMBINATION

    VMC MODULES ENGLISH|Exercise JEE ARCHIVE|50 Videos
  • PROPERTIES OF TRIANGLE

    VMC MODULES ENGLISH|Exercise JEE Advanced (Archive)|50 Videos

Similar Questions

Explore conceptually related problems

A multiple choice examination has 5 questions. Each question has three alternative answer of which exctly one is correct . The probability that a student will get 4 or more correct answers just by guessing is

On a a multiple choice examination with three possible answers for each of the five questions, what is the probability that a candidate would get four or more correct answers just by guessing?

On a multiple choice examination with three possible answers (out of which only one is correct) for each of the five questions, what is the probability that a candidate would get four or more correct answers just guessing?

On a multiple choice examination with three possible answers (out of which only one is correct) for each of the five questions, what is the probability that a candidate would get four or more correct answers just by guessing?

On a multiple choice examination with three possible answers (out of which only one is correct) for each of the five questions, what is the probability that a candidate would get four or more correct answers just by guessing.

There are 5 questions in a multiple choice examination in which each question has 3 possible answers.Find the probability that a student gives 4 correct answers by guess only.

In an entrance test, there are multiple choice questions. There are four possible answers to each question, of which one is correct. The probability that a student knows the answer to a question is 90%. If the gets the correct answer to a question, then find the probability that he was guessing.

In an entrance test, there are multiple choice questions. There are four possible answers to each question, of which one is correct. The probability that a student knows the answer to a question is 90%. If the gets the correct answer to a question, then find the probability that he was guessing.

The probability of guessing atleast 8 correct answers out of 10 true /false questions

In a multiple choice question, there are five alternative answers of which one or more than one are correct. A candidate will get marks on the question, if he ticks all the correct answers. If he decides to tick answer all random, then the least number of choices should he be allowed, so that the probability of his getting marks on the question exceeds (1)/(8) is

VMC MODULES ENGLISH-PROBABILITY-JEE MAIN (ARCHIVE)
  1. If the sides of a triangle are decided by the throw of a single dice t...

    Text Solution

    |

  2. Let A and B be two events such that p( bar (AuuB))=1/6, p(AnnB)=1/4 a...

    Text Solution

    |

  3. A multiple choice examination has 5 questions. Each question has three...

    Text Solution

    |

  4. A person throws two fair dice. He wins Rs.15 for throwing a doublet (s...

    Text Solution

    |

  5. In a random experiment, a fair die is rolled until two fours are obtai...

    Text Solution

    |

  6. Three of the six vertices of a regular hexagon are chosen the rando...

    Text Solution

    |

  7. Let S = (1, 2, …, 20}. A subset B of S is said to be ''nice'', if the ...

    Text Solution

    |

  8. Assume that each born child is equally likely to be a boy or a girl. I...

    Text Solution

    |

  9. Four persons can hit a target correctly with probabilities (1)/(2),(1)...

    Text Solution

    |

  10. Let A and B be two non-null events such that AsubeB. Then, which of th...

    Text Solution

    |

  11. Two integers are selected at random from the set {1, 2, …, 11}. Given ...

    Text Solution

    |

  12. A unbiased coin is tossed. If the result is a head a pair of unbiased ...

    Text Solution

    |

  13. An urn contains 5 red and 2 green balls. A ball is drawn at random fro...

    Text Solution

    |

  14. For an initial screening of an admission test, a candidate is given f...

    Text Solution

    |

  15. Let a random variable X have a binomial distribution with mean 8 and v...

    Text Solution

    |

  16. Minimum number of times a fair coin must be tossed so that the probabi...

    Text Solution

    |

  17. The minimum number of times one has to toss a fair coin so that the pr...

    Text Solution

    |

  18. In a game, a man wins Rs 100 if he gets 5 or 6 on a throw of a fair di...

    Text Solution

    |

  19. If the probability of hitting a target by a shooter, in any shot is 1/...

    Text Solution

    |

  20. Two cards are drawn successively with replacement from a well-shuffled...

    Text Solution

    |