Home
Class 11
MATHS
If the co-efficient of variation of two ...

If the co-efficient of variation of two frequeny distribution are 58% and 64% and their SD are 21.2 and 15.2 resp.. Find AM of the distribution.

Promotional Banner

Topper's Solved these Questions

  • MODEL QUESTION PAPERS-SET 12

    UNITED BOOK HOUSE|Exercise EXERCISE|49 Videos
  • MODEL QUESTION PAPERS-SET 14

    UNITED BOOK HOUSE|Exercise EXERCISE|49 Videos

Similar Questions

Explore conceptually related problems

Coefficients of variation of two distributions are 50 and 60, and their arithmetic means are 30 and 25, respectively. Difference of their standard deviations is a. 0 b. 1 c. 1.5 d. 2.5

If the co-efficient variance and standerd deviation of two frequency distribution are 60% and 18, 15 respectively, then find the arithimetic mean of the two frequency distribution.

Coefficient of variation of two distributions are 60 and 70, and their standard deviations are 21 and 16, respectively. What are their arithmetic means.

The mean, median and the coefficient of variation of a distribution are respectively 45, 42 and 40%. Find the standard deviation, mode and coefficient of skewness.

If the mean of the following frequency distribution is 7.2 find value of 'K'.

Find A.M. and SD of the following distribution table :

In a distribution, coefficient of variation =5% and variance =4, then the mean of the distribution is -

If co-efficient of variation = 45% and mean = 24. Find the standard Deviation

If arithmetic mean and coefficient of variation of a variable x are 10 and 50% respectively, find Var (5 - 2x).

The lower and the upper quartiles of a disiribution are 14.6 and 25.2 respectively and the coefficient of skewness is 0.5. Find the median of the distribution.

UNITED BOOK HOUSE-MODEL QUESTION PAPERS-SET 13-EXERCISE
  1. The coefficient of three consecutive terms in the expansion of (1+x)^n...

    Text Solution

    |

  2. Show that the straight line (a + 2b) x + (a -3b)y + b -a = 0 always p...

    Text Solution

    |

  3. Find the equations of straight line which are perpendicular to the str...

    Text Solution

    |

  4. y = 2x is a chord of the circle x^2 + y^2 -10 x = 0. Find the equation...

    Text Solution

    |

  5. Find the ratio in which the plane 2x + 2y - 2z = 1 divides the line se...

    Text Solution

    |

  6. Evaluate :lim(xrarroo)[(1^(1//x)+2^(1//x)+3^(1//x))/3]

    Text Solution

    |

  7. Differentiate x^(-2/3) with respect to x, with behalf of definition.

    Text Solution

    |

  8. Prove that sqrt3is irrational, (use the method of contradiction)

    Text Solution

    |

  9. If x and y are odd integers, then xy is also an odd integer r examine ...

    Text Solution

    |

  10. The probability of occurrence of at least one event of two events X an...

    Text Solution

    |

  11. If the co-efficient of variation of two frequeny distribution are 58% ...

    Text Solution

    |

  12. Prove that (sec8theta-1)/(sec4theta-1)=(tan8theta)/(tan2theta)

    Text Solution

    |

  13. In /\ABC,Prove that a cos A + b cos B + c cos C = 2a sin B sin C

    Text Solution

    |

  14. If a1,a2,a3,...,aaare in A.P then show that 1/(a1a2)+1/(a2a3)+1/(a3a4)...

    Text Solution

    |

  15. Solve x^2 -(7 -i)x + (18 -i) = 0 and hence prove that the roots are no...

    Text Solution

    |

  16. The Indian cricket eleven is to be selected out of 15 players. 6 of th...

    Text Solution

    |

  17. Draw the graph and' find the common region of the system of following ...

    Text Solution

    |

  18. If the pointP(at^2,2at) is a end point of a chord of the parabolay^2=...

    Text Solution

    |

  19. In a hyperbola, (a) centre is origin (b) transverse axis along-with x ...

    Text Solution

    |

  20. find the equation of the ellipse whose eccentricities is 1/2, focus i...

    Text Solution

    |