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Statistics Exercise 14.1, Q1

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Statistics Exercise 14.1, Q2

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Statistics Exercise 14.1, Q3

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Statistics Exercise 14.1, Q4

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Statistics Exercise 14.1, Q5

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Statistics Exercise 14.1, Q6

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Statistics Exercise 14.1, Q7

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Statistics Exercise 14.1, Q8

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Statistics Exercise 14.1, Q9

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Statistics Exercise 14.2, Q1

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Statistics ,Ex 14.2 Q2

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Statistics ,Ex 14.2 Q3

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Statistics ,Ex 14.2 Q4

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Statistics ,Ex 14.2 Q5

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Statistics ,Ex 14.2 Q6

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Statistics Exercise 14.3, Q1

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Statistics Ex 14.3 Q2

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Statistics Ex 14.3 Q3

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Statistics Ex 14.3 Q4

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Statistics Ex 14.3 Q5

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Statistics Ex 14.3 Q6

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Statistics Ex 14.3 Q7

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Statistics Ex 14 .4 , Q1

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Statistics Ex 14 .4 , Q3

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The monthly income of 100 families are given as below :

Income in ( in ₹) | Number of families |

0-5000 | 8 |

5000-10000 | 26 |

10000-15000 | 41 |

15000-20000 | 16 |

20000-25000 | 3 |

25000-30000 | 3 |

30000-35000 | 2 |

35000-40000 | 1 |

Calculate the modal income.

The daily income of a sample of 50 employees are tabulated as follows:

Income (in Rs.): | 1-1200 | 201 -400 | 401-600 | 601 - 800 |

No.of employees : | 14 | 15 | 14 | 7 |

Find the mean daily income of employees.

The table below shows the daily expenditure on food of 30 households in a locality:

Daily expenditure (in Rs) | Number of households |

100 – 150 | 6 |

150 – 200 | 7 |

200 – 250 | 12 |

250 – 300 | 3 |

300 – 350 | 2 |

Find the mean and median daily expenditure on food.

The following table gives the daily income of 50 workers of a factory:

Daily income (in Rs) | 100 – 120 | 120 – 140 | 140 – 160 | 160 – 180 | 180 – 200 |

No. of workers | 12 | 14 | 8 | 6 | 10 |

Find the mean, median and mode of the above data.

A survey regarding the heights (in cm) of 50 girls of a class was conducted and the following data was obtained:

Height in cm |
120 – 130 | 130 – 140 | 140 – 150 | 150 – 160 | 160 – 170 |

No. of girls |
2 | 8 | 12 | 20 | 8 |

Find the mean, median and mode of the above data.

Find the mean, median and mode of the following data:

Marks obtained | 25 - 35 | 35 – 45 | 45 – 55 | 55 – 65 | 65 – 75 | 75 - 85 |

No. of students | 7 | 31 | 33 | 17 | 11 | 1 |