# CBSE Class 10-Mathematics: Chapter – 14 Statistics Part 13 (For CBSE, ICSE, IAS, NET, NRA 2022)

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**Question 6**:

Find the median of the following frequency distribution:

Wages (in ₹) | |||||

No. of Labourer |

**Answer**:

We have

Wages (in ₹) | No. of labourer (f) | C. F |

200 - 300 | 3 | 3 |

300 - 400 | 5 | 8 |

400 - 500 | 20 | 28 |

500 - 600 | 10 | 38 |

600 - 700 | 6 | 44 |

Now and this lies in class.

Median class

Here,

We know that

**Question 7**:

The following tables gives production yield per hectare of wheat of farms of village:

Production yield | ||||||

No. of farms | 2 | 8 | 12 | 24 | 38 | 16 |

Change the distribution to a more than type distribution and draw its O give.

**Answer**:

More than type O give

Production yield (Kg/ha) | C. F |

More than or equal to 50 | |

More than or equal to 55 | |

More than or equal to 60 | |

More than or equal to 65 | |

More than or equal to 70 | |

More than or equal to 75 |

Now, draw the O given by plotting the points

**Question 8**:

The A. M of the following distribution is . Determine the value of P.

Classes | |||||

Frequency |

**Answer**:

We have

Class Interval | Mid-value | Frequency | |

0 - 20 | 10 | 8 | 80 |

20 - 40 | 30 | 15 | 450 |

40 - 60 | 50 | 20 | 1000 |

60 - 80 | 70 | P | 70P |

80 - 100 | 90 | 5 | 450 |

Since Mean,

Thus,