Mean Calculator
Calculate the mean (average) of any set of numbers.
Enter Numbers (comma-separated)
Calculation:
1. Values: 5, 10, 15, 20, 25
2. Sum: 5 + 10 + 15 + 20 + 25 = 75
3. Count: 5 numbers
4. Mean = 75 / 5 = 15
What is the Mean?
The mean is the arithmetic average of a set of numbers:
Mean = (Sum of all values) / (Number of values)
The mean is one of the most common measures of central tendency in statistics.
How to Calculate the Mean
- Add all numbers together to get the sum
- Count how many numbers you have
- Divide the sum by the count
When to Use the Mean
The mean is useful for: - Finding the average of test scores - Calculating average temperature, rainfall, etc. - Business metrics (average sales, revenue) - Any data with numerical values
Note: The mean can be affected by outliers (extremely high or low values).
Mean vs. Median vs. Mode
- Mean: The average (sum divided by count)
- Median: The middle value when sorted
- Mode: The most frequently occurring value
Common Questions
What is the mean in statistics?
The mean is the arithmetic average of a set of numbers, calculated by adding all values and dividing by the count of values.
How do you calculate the mean?
To calculate the mean: add all the numbers together, then divide by how many numbers there are. Formula: Mean = Sum / Count.