Find the mean of 13, 16.4, 18.8, 9.2, 15.6, and 9.8

Answer

To find the mean of the numbers 13, 16.4, 18.8, 9.2, 15.6, and 9.8, follow these steps:

### Step-by-Step Solution:

1. **List the Numbers**: Write down all the numbers you need to find the mean for.
- Numbers: 13, 16.4, 18.8, 9.2, 15.6, 9.8

2. **Count the Total Number of Values**: Determine how many numbers are in the list.
- Total number of values = 6

3. **Calculate the Sum of the Values**: Add all the numbers together.
- Calculation:
- 13 + 16.4 = 29.4
- 29.4 + 18.8 = 48.2
- 48.2 + 9.2 = 57.4
- 57.4 + 15.6 = 73.0
- 73.0 + 9.8 = 82.8
- Total Sum = 82.8

4. **Divide the Sum by the Total Number of Values**: Use the formula for mean, which is the sum of the values divided by the number of values.
- Mean = Total Sum / Total Number of Values
- Mean = 82.8 / 6

5. **Perform the Division**: Calculate the mean.
- 82.8 ÷ 6 = 13.8

### Final Answer:
The mean of the numbers 13, 16.4, 18.8, 9.2, 15.6, and 9.8 is **13.8**.

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