Median Mean Mode Calculator Form
Example Data Table
Sample dataset: 12, 15, 15, 18, 20, 22, 22, 22, 30. Mean = 19.5556, Median = 20, Mode = 22.
| Position | Example Value |
|---|---|
| 1 | 12 |
| 2 | 15 |
| 3 | 15 |
| 4 | 18 |
| 5 | 20 |
| 6 | 22 |
| 7 | 22 |
| 8 | 22 |
| 9 | 30 |
Formula Used
Mean
Formula: Mean = Σx / n
Add all values, then divide by the total number of values.
Median
Odd count: Median = middle sorted value
Even count: Median = (two middle values) / 2
Mode
Rule: Mode is the value with the highest frequency.
A dataset may have one mode, multiple modes, or no repeated mode.
Additional summary values
Range: Maximum - Minimum
Relative Frequency: (Frequency / Total count) × 100
How to Use This Calculator
- Enter your dataset in the numbers box.
- Select a delimiter or leave it on auto detect.
- Choose decimal places, output order, and chart type.
- Click Calculate to generate the results.
- Review the mean, median, mode, sorted values, and frequency table.
- Use the CSV or PDF buttons to export the report.
FAQs
1. What is the difference between mean, median, and mode?
Mean is the arithmetic average. Median is the middle value after sorting. Mode is the most frequent value in the dataset.
2. What separators can I use for the dataset?
The calculator accepts commas, spaces, semicolons, pipes, or line breaks, depending on your selected delimiter option.
3. What happens if every value appears only once?
If every value appears once, the calculator reports no repeated mode. That is common in small or evenly spread datasets.
4. Which measure handles outliers better?
Median is usually less affected by extreme outliers. Mean changes more when very high or very low values are present.
5. Can I use decimals and negative numbers?
Yes. Decimals and negative numbers are supported, as long as each entry is a valid numeric value.
6. Why is the graph useful?
The chart helps you inspect clustering, spread, repeated values, and how central tendency compares with the full distribution.
7. When should I download CSV or PDF?
CSV is useful for spreadsheets and audits. PDF is better for sharing a fixed report or printable summary.
8. Which result should I rely on most?
Use mean for balanced data, median for skewed data, and mode when the most common value matters most.