Home
Class 12
MATHS
Two coins are tossed simultaneously. The...

Two coins are tossed simultaneously. Then, the value of E(X), where X denotes the number of heads is

A

`(1)/(2)`

B

`2`

C

1

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
Here , n = 2 , p = `(1)/(2)`
E(X) = mean = np = `2 xx (1)/(2) = 1`
Promotional Banner

Topper's Solved these Questions

  • MHTCET 2009

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MATHEMATICS|50 Videos

  • MHTCET 2011

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise METHEMATICS|50 Videos

Similar Questions

Explore conceptually related problems

Two coins are tossed simultaneously. The probability of getting at most one head is

three fair coins are tossed simultaneously . Find the propability of getting more heads than the number of tails.

Three balance coins are tossed simultaneoulsy. If X denotes the number of heads, find probaility distribution of X.

Two coins are tossed simultaneously. What is the probability of getting at the most one head?

Two coins are tossed simultaneously. Find the probability of getting at least one head.

8 coins are tossed simultaneously . The probability of getting 6 head is

If n coins are tossed simultaneously,the probability of getting head an odd number of xx is

Two coins are tossed simultaneously. What is the probability of getting at least one head?

If two coins are tossed simultaneously. Find the probability of getting 2 heads.

MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-MHTCET 2010-Mathematics
  1. Dual of (x +y)(x'*1) is

    Text Solution

    |

  2. The value of f(4) - f(3) is

    Text Solution

    |

  3. (1 + Delta)^(n) f(a) is equal to

    Text Solution

    |

  4. Missing term in the following table is {:(x " " : 0 , 1 , 2 , 3 ,...

    Text Solution

    |

  5. If u(0) = 8 , u(1) = 3 , u(2) = 12 , u(3) = 51 , then the value of Del...

    Text Solution

    |

  6. If p,q,r are single proposition with truth values T, F, F, then the tr...

    Text Solution

    |

  7. (p ^^ q) vv ~ p is equivalent to

    Text Solution

    |

  8. Simplify the Boolean function (x* y) + [(x+ y') * y]'.

    Text Solution

    |

  9. The value of lim(x to oo) (1 + 2 + 3 … + n)/(n^(2)) is

    Text Solution

    |

  10. If matrix A=[(a,b),(c,d)], then |A|^(-1) is equal to

    Text Solution

    |

  11. The position vectors of vertices of a DeltaABC are 4hati - 2 hatj , h...

    Text Solution

    |

  12. A four digit number is to be formed using the digits 1,2,3, 4, 5,6,7 (...

    Text Solution

    |

  13. Two coins are tossed simultaneously. Then, the value of E(X), where X ...

    Text Solution

    |

  14. The equation of the plane which passes through (2,-3,1) and is normal ...

    Text Solution

    |

  15. If g is the inverse of f and f'(x) = (1)/(1 + x^(2)) , then g'(x) is e...

    Text Solution

    |

  16. The angle between the lines in x^2-xy-6y^2-7x+31y-18=0 is

    Text Solution

    |

  17. The pair equation of the lines passing through the origin and having s...

    Text Solution

    |

  18. Find the equations of the tangents to the circle x^2+y^2-6x+4y=12 whic...

    Text Solution

    |

  19. Find the point where the line (x-1)/2=(y-2)/-3=(z+3)/4 meets the plane...

    Text Solution

    |

  20. Let the equation of circle is x^(2) + y^(2) - 6x - 4y + 9 = 0 . Then t...

    Text Solution

    |