Home
Class 10
MATHS
Find the variance and standard deviation...

Find the variance and standard deviation of the wages of 9 workers given below :
Rs. 310, Rs. 290, Rs. 320, Rs 280, Rs. 300, Rs. 290, Rs. 320, Rs. 310, Rs. 280.

Text Solution

Verified by Experts

The correct Answer is:
14.91
Promotional Banner

Topper's Solved these Questions

  • STATISTICS AND PROBABILITY

    PREMIERS PUBLISHERS|Exercise SOLUTION TO EXERCISE 8.2|9 Videos

  • STATISTICS AND PROBABILITY

    PREMIERS PUBLISHERS|Exercise SOLUTION TO EXERCISE 8.3|33 Videos

  • RELATIONS AND FUNCTION

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT OBJECTIVE TYPE QUESTIONS|25 Videos

  • TRIGONOMETRY

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT OBJECTIVE TYPE QUESTIONS|22 Videos

Similar Questions

Explore conceptually related problems

Find the amount received when 300 shares of FV Rs 100 , were sold at a discount of Rs 30

Find the number of shares received when Rs 60,000 was invested in the shares of FV Rs 100 and MV Rs 120

Below is given the frequency distribution of Daily wages (in rs ) of 130 workers . Find the modal wages of a worker .

Find the parchased price of a share of FV Rs 100 if it is at premium of Rs 30 . The brokerage rate is 0.3%

PREMIERS PUBLISHERS-STATISTICS AND PROBABILITY -OTHER IMPORTANT OBJECTIVE TYPE QUESTIONS
  1. Find the variance and standard deviation of the wages of 9 workers giv...

    Text Solution

    |

  2. If the sum and mean of the data are 418 and 11 respectively then the n...

    Text Solution

    |

  3. The coefficient of range of the data 20, 62, 43, 48, 13, 34, 39, is :

    Text Solution

    |

  4. If the standard deviation of the data 2, 3, 5, 7, 8, is 2.28 what will...

    Text Solution

    |

  5. The variance of first 10 natural numbers is:

    Text Solution

    |

  6. The mean of the data is 16 and the coefficient of varation is 12.5. Fi...

    Text Solution

    |

  7. Batsmen A and B have their coefficient of variation as 13.5% and 25% r...

    Text Solution

    |

  8. When a dice is thrown, the probability of getting an odd number is:

    Text Solution

    |

  9. When two dice is thrown, the probability of getting sum of the number ...

    Text Solution

    |

  10. A bag contains 6 blue balls and 5 green balls and 2 red balls. A ball ...

    Text Solution

    |

  11. Two dice are rolled. Find the probability that the sum of the outcome ...

    Text Solution

    |

  12. From a well shuffled pack of 52 cards one card is selected at random. ...

    Text Solution

    |

  13. A year is selected at random. What is the probability that {:("(...

    Text Solution

    |

  14. Three fair coins are tossed together. Find the probability of getting ...

    Text Solution

    |

  15. If P(A)=0.5, P(B)=0.3, P(AcapB)=0.25. Find P(AcupB)

    Text Solution

    |

  16. Ia A and B are mutually exclusive, given P(AcupB)=(3)/(5), P(A)=(1)/(2...

    Text Solution

    |

  17. Given A and B are mutually exclusine events P(not A)= 0.35 P(AcupB)=0....

    Text Solution

    |

  18. Find the odd one out:

    Text Solution

    |

  19. The sum of all deviations of the data from its mean is

    Text Solution

    |

  20. The range of 6, 6, 6, 6, 6, 6, 6 is:

    Text Solution

    |

  21. If the standard deviation of a, b, c is sigma this standard deviation ...

    Text Solution

    |