Home
Class 12
MATHS
The distribution of a random variable X ...

The distribution of a random variable X is given below

Then, the standard deviation of X is

A

4

B

`3/2`

C

2

D

1

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • ONLINE QUESTION PAPER

    TS EAMCET PREVIOUS YEAR PAPERS|Exercise Mathematics|80 Videos

  • QUESTION PAPER 2015

    TS EAMCET PREVIOUS YEAR PAPERS|Exercise MATHEMATICS|78 Videos

Similar Questions

Explore conceptually related problems

The probability distribution of a random variable X is given below. Find k, mean and variance of X

The probability distribution of a random variable X is given below. Then its mean is {:(X=x_(1),1,2,3),(P(X=x_(1)),1//4,1//8,5//8):}

The probability distribution of a random variable X is given below. Find the value of k, mean, also find variance of X.

The probability distribution of a random variable Xis given below: Find the value of k and the mean and variance of X.

is the probability distribution of a random variable X. Find the value of K and the variance of X.

The probability distribution of a random variable X is given below , then k= {:(X=x,1,2,3,4),(P(X=x),2k,4k,3k,k):}

The standard deviation of a variable x is sigma . The standard deviation of the variable (ax + b)/(c ) where a, b, c are constants is

TS EAMCET PREVIOUS YEAR PAPERS-ONLINE QUESTION PAPER 2018-MATHEMATICS
  1. From a lot containing n good and m bad articles, if 2 articles are pi...

    Text Solution

    |

  2. In a classroom 5% of the boys and 2% of the girls taller than 1.6 m. T...

    Text Solution

    |

  3. The distribution of a random variable X is given below Then, the ...

    Text Solution

    |

  4. The probability of securing a succes in an trial is three times that o...

    Text Solution

    |

  5. If the line jjoining the point A (b cos alpha,b sin alpha) and B (a c...

    Text Solution

    |

  6. A straight line x-2y-4=0 is shifted parallel to it by 3 units away fro...

    Text Solution

    |

  7. A straight line x-2y-4=0 is shifted parallel to it by 3 units away fr...

    Text Solution

    |

  8. The straight lines x+ 3y -4=0,x+y-4=0 and 3x+y - 4 = 0

    Text Solution

    |

  9. The combined eqyation of the straight lines passing through (1, 1) and...

    Text Solution

    |

  10. The centroid of the triangle formed by the pair of straight lines 12x^...

    Text Solution

    |

  11. The equation of the bisectors of the angles between the lines joining ...

    Text Solution

    |

  12. Consider the following statementas. I. The intercept made by the cir...

    Text Solution

    |

  13. If the circle x^(2) + y^(2) + 2kx - 4y+1=0 and x^(2)+y(2)-8x-12 y + 43...

    Text Solution

    |

  14. For all real values of k, the point which lies on the polar of (k,k+1)...

    Text Solution

    |

  15. The number of common tangents to the circles x^(2)+y^(2)+4x=0 and x^...

    Text Solution

    |

  16. If (2)/(sqrt(5)) is the length of the common chord of the circles x^(2...

    Text Solution

    |

  17. Match the item of list-I with those of List-II Then, which of the...

    Text Solution

    |

  18. An equilateral is inscribed in the parabola y^(2)=8x with one of its v...

    Text Solution

    |

  19. If the straight line 8x+3sqrt(2)y= 36 touches the ellipse (x^(2))/(9...

    Text Solution

    |

  20. The eccentricity of an ellipse, with its centre at the origin, is 1/2....

    Text Solution

    |