Home
Class 12
MATHS
Find the mean number of heads in three t...

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

Text Solution

Verified by Experts

The correct Answer is:
1.5
Promotional Banner

Topper's Solved these Questions

  • PROBABILITY

    NCERT TAMIL|Exercise EXERCISE 3.5|15 Videos

  • PROBABILITY

    NCERT TAMIL|Exercise MISCELLANEOUS EXERCISE ON CHAPTER 13|19 Videos

  • PROBABILITY

    NCERT TAMIL|Exercise EXERCISE 3.3|14 Videos

  • ORDINARY DIFFERENTIAL EQUATIONS

    NCERT TAMIL|Exercise EXERCISE 10.9|25 Videos

  • PROBABILITY DISTRIBUTIONS

    NCERT TAMIL|Exercise EXERCISE 11.6 (Choose the Correct )|19 Videos

Similar Questions

Explore conceptually related problems

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

Let X denote the number of times heads occur in n tosses of a fair coin. If P(X=4),\ P(X=5)\ a n d\ P(X=6) are in AP; the value of n is

Find the probability distribution of i. number of head in two tosses of a coin. ii. number of tails in the simultaneous tosses of three coins. iii. number of heads in four tosses of a coin.

Suppose two coins are tossed once if X denotes the number of heads .find The valuses of the random variable and the number of elements in its inverse image

Find the binomial distrubution find the mean and variance of X for the following Six fair coins are tossed once and X denotes the number of heads

Suppose X is the number of tails occurred when three fair coins are tossed once simultaneously. Find the values of the random variable X and number of points in its inverse images.

Suppose X is the number of tails occurred when three fair coins are tossed once simultaneously. Find the values of the random variable X and number of points in its inverse images .

A fair coin with 1 marked on one face and 6 on the other and a fair die are both tossed. Find the probability that the sum of numbers that turn up is (i9ii) 12.

Suppose two coins are tossed once if X denotes the number of heads find Inverse image of (1)

NCERT TAMIL-PROBABILITY-EXERCISE 3.4
  1. State which of the following are not the probability distributions of ...

    Text Solution

    |

  2. An urn contains 5 red and 2 black balls. Two balls are randomly drawn....

    Text Solution

    |

  3. Let X represent the difference between the number of head and the numb...

    Text Solution

    |

  4. Find the probability distribution of i. number of head in two tosse...

    Text Solution

    |

  5. Find the probability distribution of the number of successes in two to...

    Text Solution

    |

  6. From a lot of 30 bulbs which include 6 defectives, a sample of 4 bulbs...

    Text Solution

    |

  7. A coin is biased so that the head is 3 times as likely to occur as tai...

    Text Solution

    |

  8. A random variable X has the following probability distribution. ...

    Text Solution

    |

  9. The random variable X has a probability distribution P(X) of the follo...

    Text Solution

    |

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

    Text Solution

    |

  11. Two dice are thrown simultaneously. If X denotes the number of sixes, ...

    Text Solution

    |

  12. Two numbers are selected at random (without replacement) from the firs...

    Text Solution

    |

  13. Let X denote the sum of the numbers obtained when two fair dice are ro...

    Text Solution

    |

  14. A class has 15 students whose ages are 14, 17, 15, 14, 21, 17, 19, 20,...

    Text Solution

    |

  15. In a meeting, 70% of the members favour and 30% oppose a certain propo...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |