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The following table gives production yield in kg per hectare of wheat of 100 farms of a village :

Production yield(kg/hectare) : |
40−45 | 45−50 | 50−55 | 55−60 | 60−65 | 65−70 |

Number of farms |
4 | 6 | 16 | 20 | 30 | 24 |

Change the distribution to a 'more than type' distribution, and draw its ogive.

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#### Solution

Production yield |
Cumulative frequency |

more than 40 | 100 |

more than 45 | 96 |

more than 50 | 90 |

more than 55 | 74 |

more than 60 | 54 |

more than 65 | 24 |

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