Home
Class 9
MATHS
If each observation of a data is increas...

If each observation of a data is increased by 3, then what about the new man?

Promotional Banner

Topper's Solved these Questions

  • STATISTICS

    MODERN PUBLICATION|Exercise EXERCISE|239 Videos
  • QUADRILATERALS

    MODERN PUBLICATION|Exercise EXERCISE|133 Videos
  • SURFACE AREAS AND VOLUMES

    MODERN PUBLICATION|Exercise EXERCISE|228 Videos

Similar Questions

Explore conceptually related problems

If each observation of the data is increased by 5, then their mean

The mean and standard deviation of six observations are 8 and 4, respectively. If each observation is multiplied by 3, find the new mean and new standard deviation of the resulting observations.

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

If each of the observations x_1, x_2, ....x_n is increased by an amount ‘a’, where ‘a’ is a negative or positive number, show that the variance remains unchanged.

Write about Neanderthal man

The time period of a satellite is 5 hours. If the separate between the earth and the satellite is increased 4 times, what will be the new time period?

The mean of n observations x_1,x_2,…………..x_n is barx . If (p+q) is added to each observations then prove that the mean of the new set of observations is barx+(p+q) .

The mean of 12 numbers is 40. if each numbers if divided by 8, what will be the mean of the new numbers?

MODERN PUBLICATION-STATISTICS-EXERCISE
  1. The mid value of a class interval is 42 and the class size is 10. find...

    Text Solution

    |

  2. Let barx be the mean of x1,x2,……,xn and bary the mean of y1,y2……,yn ba...

    Text Solution

    |

  3. If each observation of a data is increased by 3, then what about the n...

    Text Solution

    |

  4. True/false Mean, Median and Mode are measures in same units.

    Text Solution

    |

  5. True/false Class Mark of 90-120 is 100.

    Text Solution

    |

  6. True/false Mode of 2,3,9,16,3,9, is 16.

    Text Solution

    |

  7. True/false For the set of numbers 2,2,4,5 and 12, then Mean>mode

    Text Solution

    |

  8. True/false Is arithmetic mean of 7,5,13,x and 9 is 10, then x is 5.

    Text Solution

    |

  9. True/false Empirical relatin between mean, mode and median is Mode=2Me...

    Text Solution

    |

  10. True/false Median 0,2,2,2,-3.5,-1.5,-3,6,6,5,6 is 3.5.

    Text Solution

    |

  11. True/false If the mean of 5 observation x,x+2,x+4,x+6,x+8 is 11, then ...

    Text Solution

    |

  12. Let m be the mid-point and l be the upper class limit of a class in a ...

    Text Solution

    |

  13. True/false 10 observations 6,14,15,17,x+1,2x-13,30,32,34,43 are writte...

    Text Solution

    |

  14. Fill ups Data collected by an investigator himself is called…….data.

    Text Solution

    |

  15. Fill ups Raw data when presented in ascending or descending order form...

    Text Solution

    |

  16. Fill ups Minimum value on subtraction from maximum value gives………….. .

    Text Solution

    |

  17. Fill ups Mode of the value of data which occurs …………..number of times.

    Text Solution

    |

  18. The besector of an angle divides it into two

    Text Solution

    |

  19. Number of times a particular observation occurs in a given data is cal...

    Text Solution

    |

  20. Fill ups For a raw data, Range+Number of classes, gives………………to form a...

    Text Solution

    |