Home
Class 12
MATHS
The coefficient of variation of two dist...

The coefficient of variation of two distribution are 60 and 70. The standard deviations are 21 and 16 respectively, then their mean is

Text Solution

Verified by Experts

The correct Answer is:
A, B
Promotional Banner

Topper's Solved these Questions

  • COMMON ENTRANCE TEST -2015

    HIMALAYA PUBLICATION|Exercise QUESTION BANK|60 Videos

  • COMPLEX NUMBERS

    HIMALAYA PUBLICATION|Exercise QUESTION BANK|306 Videos

Similar Questions

Explore conceptually related problems

The coefficient of variation of two distributions are 60 and 70. The standard deviation are 2t and 16 respectively. Then their mean is

The coefficient of variation for a distribution is 60 and standard deviation is 21. Find the arithmetic mean.

Coefficient of variation of distribution are 70 and the standard deviation is 16. What is the arithmetic mean of the distribution

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 :

If the coefficient of variation and standard deviation are 60 and 21 respectively, the arithmetic mean of distribution is

If the coefficient of variation and standard deviation are 60 and 21 respectively, the arithmetic mean of distribution is

If coefficient of variation is 60 and standard deviation is 24, then arithmetic mean is

If in a frequency distribution, the mean and median are 21 and 22 respectively, then its mode is approximately :

If the mean of a Poisson's Distribution is lambda , then is standard deviation is :

Two series A and B with equal means standard deviation 9 and 10 respectively . Which series is more consistent ?

HIMALAYA PUBLICATION-COMMON ENTRANCE TEST -2016-QUESTION BANK
  1. The value of int(2)^(8)(sqrt(10-x))/(sqrt(x)+sqrt(10-x))dx is

    Text Solution

    |

  2. The maximum value of (1/x)^(x) is

    Text Solution

    |

  3. The coefficient of variation of two distribution are 60 and 70. The st...

    Text Solution

    |

  4. If x, y, z are all different and not equal to zero and |{:(1+x,,1,,...

    Text Solution

    |

  5. If x = 2 + 3 cos theta and y = 1 -3 sin theta represent a circle then ...

    Text Solution

    |

  6. If sin^(-1)x+sin^(-1)y=(pi)/(2), then x^(2) is equal to

    Text Solution

    |

  7. If tan^(-1)(x^(2)+y^(2))=alpha then (dy)/(dx) is equal to

    Text Solution

    |

  8. The vector equation of the plane which is at a distance of 3//sqrt(14)...

    Text Solution

    |

  9. The equation of the normal to the curve y(1+x^(2))=2-x where the tang...

    Text Solution

    |

  10. Find the value of tan ""pi/8.

    Text Solution

    |

  11. The real part of (1-costheta + I sin theta)^(-1) is

    Text Solution

    |

  12. If x^(m)y^(n) = (x + y)^(m +n) then (dy)/(dx) is equal to

    Text Solution

    |

  13. The differential coefficient of log(10)x with respect to log(x)10 is

    Text Solution

    |

  14. int(0)^(pi//2)(sin^(1000)xdx)/(sin^(1000)x+cos^(1000)x) is equal to

    Text Solution

    |

  15. The value of fe^(x)(x^(2)tan^(-1) x + tan^(-1) x + 1)/(x^(2) + 1) dx ...

    Text Solution

    |

  16. The 11^(th) term in the expansion of (x+(1)/(sqrt(x)))^(14) is

    Text Solution

    |

  17. The general solution of cot theta + tan theta = 2 is

    Text Solution

    |

  18. If A = [{:(cos 2thet,,-sin 2theta),(sin 2theta,, cos 2theta):}] and A ...

    Text Solution

    |

  19. If A is matrix of order m xx n and B is a matrix such that AB' and B'A...

    Text Solution

    |

  20. The value of 1sin^(-1)(cos(53pi)/(5)) is

    Text Solution

    |