Correct Answer - Option 1 : 22.5

**Formula Used:**

Mean = Sum of all observation/Number of observation

**Calculation:**

Median:

Ascending order:

22 ,22, 22, 23, 23, 24, 24, 26, 29

⇒ The middle value is 23 so, the median is 23.

Mode:

Observation |
Frequency |

22 |
3 |

23 |
2 |

24 |
2 |

26 |
1 |

29 |
1 |

Total |
9 |

⇒ 22 is repeating maximum time so, the mode is 22.

Mean:

Mean = (Median + Mode)/2

⇒ Mean = (23 + 22)/2

⇒ Mean = 22.5

∴ The mean of median and mode is 22.5

The correct option is 1 i.e. 22.5