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The problem asks to find the median (Me) of the following set of dataThe problem asks to find the median (Me) of the following set of 

**Data**: 11, 6, 7, 13, 15, 18, 12, 9

### Step-by-Step Solution:

1. **Arrange the data in ascending order**:
   \[
   6, 7, 9, 11, 12, 13, 15, 18
   \]

2. **Find the middle value(s)**:
   Since there are 8 data points, the median will be the average of the 4th and 5th values.
   - 4th value: 11
   - 5th value: 12

3. **Calculate the median**:
   \[
   \text{Median} = \frac{11 + 12}{2} = \frac{23}{2} = 11.5
   \]

### The median (Me) is 11.5.

Would you like more details or further clarification? 

Here are 5 related questions for practice:
1. What is the mode of the data set?
2. How would the median change if an additional value, 14, were added?
3. What is the range of this data set?
4. How would you find the quartiles (Q1 and Q3) for this data set?
5. What is the mean (average) of this data set?

**Tip**: The median is not affected by extreme values (outliers), making it a good measure of central tendency for skewed data.

Diberikan sampel dengan data 11, 6, 7, 13, 15, 18, 12, 9. Setelah disusun menurut urutan nilainya, tentukan Me!

Learn how to find the median (Me) of the data set 11, 6, 7, 13, 15, 18, 12, 9 by arranging it in ascending order and calculating the middle value. This concept is crucial in descriptive statistics, suitable for students in Grades 6-8.

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