Home
Class 12
MATHS
If X is the number of heads getting when...

If X is the number of heads getting when 8 coins are tossed , then mean and standard deviation are

A

`5//2, 5//4`

B

`4, sqrt2`

C

`7//2, sqrt(35//12)`

D

`3//4, 4//5`

Text Solution

Verified by Experts

The correct Answer is:
B
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 of heads getting when five coins are tossed, then mean and variance are

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

Find the probability of getting 2 heads when 4 coins are tossed

If two coins are tossed, the chance of getting no heads is

Let X represent the difference between the number of heads and the number of tails obtained when a coin is tossed 6 times. What are possible values of X?

If 3 coins are tossed simultaneously and the number of heads turned up is denoted by the variable X, then find mean and variance of X.

Find the probability of getting atmost 3 heads when 4 coins are tossed.

Find the mean number of heads in three tosses of a fair coin.

DIPTI PUBLICATION ( AP EAMET)-THEORETICAL DISTRIBUTIONS-EXERCISE 1 (CHOOSE THE CORRECT ANSWER FROM THE ALTERNATIVE 1,2,3 OR 4 GIVEN )
  1. A coin is tossed 3 times. The probability of getting head once and tai...

    Text Solution

    |

  2. If X is the number of heads getting when five coins are tossed, then m...

    Text Solution

    |

  3. If X is the number of heads getting when 8 coins are tossed , then mea...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |