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Statistics is the study of collection of data, interpretation analysis, research and outcome of the product in the market of a particular application. It involves the study of mean median mode and variance like how the data is behaving.

Class Interval |
Frequency |

0 - 9 | 5 |

10 - 19 | 10 |

19 - 29 | 8 |

29 - 39 | 7 |

39 - 49 | 6 |

Total frequency (N) = 36.

Now let us consider the midpoint of the above class interval.

Mid Point |
Frequency |
FX |

4.5 | 5 | 22.5 |

14.5 | 10 | 144 |

24 | 8 | 192 |

34 | 7 | 238 |

44 | 6 | 264 |

172.1 |

Formula: Mean = $\frac{ΣFX}{N}$

= $\frac{172.1}{36}$

= 4.78

The median is the separator of the date or the middle one

Here the median is 6.

The mode in the un- grouped data is the data which is repeated the most.

The data which is repeated most here is 8 .

The modal value is 8.