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#### Related QuestionsVIEW ALL [4]

Find the mean, mode, S.D. and coefficient of skewness for the following data:

Year render: | 10 | 20 | 30 | 40 | 50 | 60 |

No. of persons (cumulative): | 15 | 32 | 51 | 78 | 97 | 109 |

Calculate coefficient of variation from the following data:

Income (in Rs): | 1000-1700 | 1700-2400 | 2400-3100 | 3100-3800 | 3800-4500 | 4500-5200 |

No. of families: | 12 | 18 | 20 | 25 | 35 | 10 |

An analysis of the weekly wages paid to workers in two firms *A* and *B*, belonging to the same industry gives the following results:

Firm A | Firm B | |

No. of wage earners | 586 | 648 |

Average weekly wages | Rs 52.5 | Rs. 47.5 |

Variance of the |
100 |
121 |

distribution of wages |

(i) Which firm *A* or *B* pays out larger amount as weekly wages?

(ii) Which firm *A* or *B* has greater variability in individual wages?

The following are some particulars of the distribution of weights of boys and girls in a class:

Number | Boys | Girls |

100 | 50 | |

Mean weight | 60 kg | 45 kg |

Variance | 9 | 4 |

Which of the distributions is more variable?