Home
Class 11
MATHS
The mean of 5 observations is 4.4 and th...

The mean of 5 observations is 4.4 and their variance is 8.24.If three of the observations are 1,2 and 6,find the other two observations.

Promotional Banner

Topper's Solved these Questions

  • SETS

    V PUBLICATION|Exercise QUESTION BANK|116 Videos
  • STRAIGHT LINES

    V PUBLICATION|Exercise QUESTIONBANK|99 Videos

Similar Questions

Explore conceptually related problems

The mean of five observations is 4 and their variance is 5.2. If three of these observations are 2, 4 and 6, then the other two observations are

The mean of five numbers is 0 and their variance is 2. If three of those numbers are -1,1and2 , then the other two numbers are

The mean and variance of 7 observations are 8 and 16 respectively . If five of the observations are 2,4,10,12,14 find the remaining two observations.

The mean and variance of 7 observations are 8 and 16 respectively. If five of the observations are '2,4,10,12,14'. Find the remaining two observations:

Find the variance for the observations 2,4,6,8, and 10 .

Mean of 10 observations is 50 and their standard deviation is 10. If each observation is subtracted by 5 and then divided by 4, then the new mean and standard deviation are a) 22.5, 2.5 b) 11.25, 2.5 c) 11.5, 2.5 d) 11,2.5

The variance of 20 observations is '5 .' If each observation is multiplied by 2, find the new variance of the resulting observations.

(b)Find mean deviatio from the mean for the observations -1,0,4.

If the mean of the numbers a, b, 8, 5, 10 is 6 and their variance is 6.8, then ab is equal to

V PUBLICATION-STATISTICS-QUESTION BANK
  1. Find the mean and variance of the first 10 multiples of 3.

    Text Solution

    |

  2. Find the mean and standard deviation using short-cut method

    Text Solution

    |

  3. Find the mean and variance for the following frequency distribution.

    Text Solution

    |

  4. Find the mean, variance and standard deviation using short cut method.

    Text Solution

    |

  5. Two plants A and B of a factory show following results about the numbe...

    Text Solution

    |

  6. Coefficient of variation of two distributions are 60 and 70 and their ...

    Text Solution

    |

  7. The following values are calculated in respect of heights and weights ...

    Text Solution

    |

  8. The following is the rècord of goals scored by team '(A)' in a footbal...

    Text Solution

    |

  9. The sum and squares corresponding to length x(in cm) and y(in gm) of 5...

    Text Solution

    |

  10. The variance of 20 observations is '5 .' If each observation is multip...

    Text Solution

    |

  11. The mean of 5 observations is 4.4 and their variance is 8.24.If three ...

    Text Solution

    |

  12. If each of the observation x1,x2,………..xn is increased by 'a',where a...

    Text Solution

    |

  13. The mean and standard deviation of 100 observations were calculated as...

    Text Solution

    |

  14. The mean and variance of 7 observations are 8 and 16 respectively. If ...

    Text Solution

    |

  15. The mean and standard deviation of six observations are 8 and 4, respe...

    Text Solution

    |

  16. The mean and standard deviation of marks obtained by. 50 students of a...

    Text Solution

    |

  17. Calculate the mean deviation about median from the following data 340...

    Text Solution

    |

  18. Find the mean deviation about the mean for the following data: 6,7,10,...

    Text Solution

    |

  19. Find the variance and standard deviation for the following data 65,68...

    Text Solution

    |

  20. If each of the observation x1,x2,………..xn is increased by 'a',where a...

    Text Solution

    |