# Daily wages of 110 workers, obtained in a survey, are tabulated below

Daily wages (in Rs.) Number of workers

100 - 120 10

120 - 140 15

140 - 160 20

160 - 180 22

180 - 200 18

200 - 220 12

220 - 240 13

Compute the mean daily wages of these workers

**Solution:**

Given, the survey represents the daily wages and number of workers.

We have to find the mean daily wages of workers.

Daily wages (in Rs.) | Number of workers (f) | Midpoint x | f × x |

100 - 120 | 10 | 110 | 1100 |

120 - 140 | 15 | 130 | 1950 |

140 - 160 | 20 | 150 | 3000 |

160 - 180 | 22 | 170 | 3740 |

180 - 200 | 18 | 190 | 3420 |

200 - 220 | 12 | 210 | 2520 |

220 - 240 | 13 | 230 | 2990 |

Total | ∑f = 110 | ∑fx = 18720 |

Mean = ∑fx / ∑fBy direct method,

From the table,

Mean = 18720/110

= 170.20

Therefore, the mean daily wages of the workers is 170.20

**✦ Try This: **Daily wages of 110 workers, obtained in a survey, are tabulated below:

Daily wages (in Rs.) | Number of workers (f) |

100 - 120 | 21 |

120 - 140 | 17 |

140 - 160 | 22 |

160 - 180 | 24 |

180 - 200 | 31 |

200 - 220 | 14 |

220 - 240 | 10 |

Compute the mean daily wages of these workers.

**☛ Also Check: **NCERT Solutions for Class 10 Maths Chapter 14

**NCERT Exemplar Class 10 Maths Exercise 13.3 Sample Problem 2**

## Daily wages of 110 workers, obtained in a survey, are tabulated below: Daily wages (in Rs.) Number of workers 100 - 120 10 120 - 140 15 140 - 160 20 160 - 180 22 180 - 200 18 200 - 220 12 220 - 240 13. Compute the mean daily wages of these workers

**Summary:**

The mean daily wages of the workers is 170.20

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