Mean Median Mode 44D64D
1. **Problem Statement:** Calculate the Mean, Median, and Mode for the scores of the 10-Thomas section.
2. **Mean Formula:** The mean is the average of all data points and is calculated by
$$\text{Mean} = \frac{\sum x_i}{n}$$
where $x_i$ are the scores and $n$ is the number of scores.
3. **Median Definition:** The median is the middle value when the data is ordered. If $n$ is even, it is the average of the two middle numbers.
4. **Mode Definition:** The mode is the value(s) that appear most frequently in the data set.
5. **Data for 10-Thomas:**
$$32, 25, 25, 27, 23, 20, 27, 14, 26, 15, 31, 36, 32, 24, 18, 17, 14, 36, 32, 26$$
6. **Step 1: Calculate Mean**
Sum all scores:
$$32 + 25 + 25 + 27 + 23 + 20 + 27 + 14 + 26 + 15 + 31 + 36 + 32 + 24 + 18 + 17 + 14 + 36 + 32 + 26 = 566$$
Number of scores $n=20$
Mean:
$$\frac{566}{20} = 28.3$$
7. **Step 2: Calculate Median**
Sort the data:
$$14, 14, 15, 17, 18, 20, 23, 24, 25, 25, 26, 26, 27, 27, 31, 32, 32, 32, 36, 36$$
Since $n=20$ (even), median is average of 10th and 11th values:
$$\frac{25 + 26}{2} = 25.5$$
8. **Step 3: Calculate Mode**
Frequencies:
- 14 appears 2 times
- 25 appears 2 times
- 26 appears 2 times
- 27 appears 2 times
- 32 appears 3 times
- 36 appears 2 times
Mode is the value with highest frequency: 32
**Final answers for 10-Thomas:**
- Mean = 28.3
- Median = 25.5
- Mode = 32