Home
Class 12
MATHS
X is a random variable which denotes the...

`X` is a random variable which denotes the number of heads obtained when a coin is tossed three times.Find mean and variance of the probability distribution.

Promotional Banner

Topper's Solved these Questions

  • MATRICES

    MAXIMUM PUBLICATION|Exercise EXAMPLE|119 Videos
  • PROBABILITY

    MAXIMUM PUBLICATION|Exercise EXAMPLE|144 Videos

Similar Questions

Explore conceptually related problems

A coin is tossed 3 times. Find the probability distribution of the number of heads.

Find the mean and variance of the number of heads in the two tosses of a coin.

If a fair coin is tossed 10 times, Find the probability of Exactly 6 heads.

If a fair coin is tossed 10 times, Find the probability of At most 6 heads.

Three cards are drawn successively without replacement from a well-shuffled pack of 52 cards. A random variable 'X' denotes the number of spades in the three cards. Determine the probability distribution of X.

3 coin are tossed and X be the number of heads turning up. Write probability distribution of X

If a fair coin is tossed 10 times, Find the probability of At least 6 heads.

A coin is tossed 5 times What is the probability of getting at least 3 heads?

A coin is tossed 5 times.What is the probability of getting 3 heads?

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

MAXIMUM PUBLICATION-MODEL QUESTION-EXAMPLE
  1. In a factory which manufactures bolts, machines A,B and C manufacture ...

    Text Solution

    |

  2. A coin is tossed 3 times. Find the probability distribution of the num...

    Text Solution

    |

  3. X is a random variable which denotes the number of heads obtained when...

    Text Solution

    |

  4. Equation of a curve is in the form of a third degree polynomial. It ha...

    Text Solution

    |

  5. Equation of a curve is in the form of a third degree polynomial. It ha...

    Text Solution

    |

  6. Find the area of the region bounded by the ellipse x^2/25+y^2/16=1

    Text Solution

    |

  7. Find the equation of all lines having slope 2 and being tangent to the...

    Text Solution

    |

  8. Consider an operation ** defined on the set A={1,2,4,8} by a**b=LCM ...

    Text Solution

    |

  9. Consider the matrix A=[[4,3,2],[1,p,0],[1,q,2]] and it's adjoint, adj(...

    Text Solution

    |

  10. Construct a 3times3 matrix A whose (i,j)^(th) elements is a(ij)=2i-j

    Text Solution

    |

  11. Integrate the following frac(3x-1)((x-1)(x-2)(x-3)

    Text Solution

    |

  12. Integrate the following e^xsinx

    Text Solution

    |

  13. Let veca=veci+vecj+veck,vecb=2veci+mvecj+3veck if veca is perpendic...

    Text Solution

    |

  14. Let veca=veci+vecj+veck,vecb=2veci+mvecj+3veck Find a vector vecc pe...

    Text Solution

    |

  15. Consider the line vecr=(-3veci+5vecj-6veck)+lamda(2veci+vecj+2veck) ...

    Text Solution

    |

  16. A manufacture company makes two models A and B of a product. Each piec...

    Text Solution

    |

  17. Let A=[[1,2,3],[3,1,2]] and B=[[-3,1,0],[1,3,-2]] Which of the follo...

    Text Solution

    |

  18. Let A=[[1,2,3],[3,1,2]] Find 3A

    Text Solution

    |

  19. Let A=[[1,2,3],[3,1,2]] and B=[[-3,1,0],[1,3,-2]] Evaluate 3A-B

    Text Solution

    |

  20. If y=sin^-1x,Find dy/dx

    Text Solution

    |