Home
Class 14
MATHS
The correlation coefficient computed fro...

The correlation coefficient computed from a set of 30 observations is 08 Then the percentage of variation not explained by linear regression is

A

0.8

B

0.2

C

0.64

D

36

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • STATISTICS

    PUNEET DOGRA|Exercise PRE YEAR QUESTIONS |163 Videos

  • SET & RELATION

    PUNEET DOGRA|Exercise PREV YEAR QUESTIONS|65 Videos

  • TRIGONOMETRY

    PUNEET DOGRA|Exercise PREV YEAR QUESTIONS|163 Videos

Similar Questions

Explore conceptually related problems

The correlation coefficient computed from a set of 30 observation is 0.8. Then the percentage of variation not explained by linear regression is

The coefficient of variation is computed by

The mean of a set of 20 observations is 8 and of another set of 30 observations is 10. The mean of combined set is

In a series of observations , find the coefficient of variation , given SD = 12.5 and AM = 50 .

In a series of observations , SD is 7 and mean is 28 . Find the coefficient of variation .

If the coefficient of variation of some observation is 60 and their standard deviation is 20, then their mean is

The mean of a set of 20 observations is 8 an another set of 30 observations is 10. The mean of combined set is ________.

If the mean of 10 observation is 50 and the sum of the square of the deviations of observation from the mean is 250, then the coefficient of variation of these observation is

In a series of observations , coefficient of variation is 16 and mean is 25 . Find the variance .

PUNEET DOGRA-STATISTICS-PRE YEAR QUESTIONS
  1. Consider the following statements: If 10 is added to each entry on ...

    Text Solution

    |

  2. The average age of a combined group of men and women is 25 years. If t...

    Text Solution

    |

  3. The correlation coefficient computed from a set of 30 observations is ...

    Text Solution

    |

  4. If the regression coefficient of Yon X is-6 and the correlation coeffi...

    Text Solution

    |

  5. The set of bivariate observations (x(1), y(1)), (x(2) y(2)).... (x(n) ...

    Text Solution

    |

  6. The standard deviation sigma of the first N natural numbers can be obt...

    Text Solution

    |

  7. A train covers the first Skm of its journey at a speed of 30km/hr and ...

    Text Solution

    |

  8. The mean and standard deviation of a set of values are 5 and 2 respect...

    Text Solution

    |

  9. In a test in Mathematics 20% of the students obtained first class If t...

    Text Solution

    |

  10. What is the median of a numbers 4.6, 0, 9.3.-4.8. 7.6. 23. 12.7.3.5, 8...

    Text Solution

    |

  11. Consider the following statements I. The sum of deviations from mean...

    Text Solution

    |

  12. Consider the following statements I Mean is independent of change in...

    Text Solution

    |

  13. Let barx be The the mean of x(1),x(2),x(3)…x(n) if x(i) = a +cy(i) ,...

    Text Solution

    |

  14. Consider the following statements: 1 If the correlation coefficient r(...

    Text Solution

    |

  15. if 4x-5y+33=0 and 20x-9y=107 are two lines of regression, then what ar...

    Text Solution

    |

  16. If the coefficient of correlation between x and y os 0.6, covariance i...

    Text Solution

    |

  17. Consider the following statements 1 Coefficient of variation depends...

    Text Solution

    |

  18. Given that the arithmetic mean and standard deviation of a sample of 1...

    Text Solution

    |

  19. Which one of the following can be considered as appropriate pair of va...

    Text Solution

    |

  20. It is given that X=10, y=90 sigma(x) =3. sigma(y)=12 and r(xy) = 0.8 ...

    Text Solution

    |