📊 Average Calculator
Calculate mean, median, mode, range, and standard deviation
Sorted Values
📈 Mean
Sum of all values divided by count. Most common average. Sensitive to outliers.
📏 Median
Middle value when sorted. Robust against outliers. Used for income, house prices.
🎯 Mode
Most frequent value. Useful for categorical data. A set can have multiple modes.
📐 Standard Deviation
Measures how spread out values are from the mean. Low = clustered, High = spread out.
Frequently Asked Questions
What is the difference between mean and median?
Mean is the arithmetic average: sum of all values divided by the number of values. Median is the middle value when data is sorted. The median is less affected by outliers — for example, median household income is more representative than mean income, because a few very high earners can pull the mean up significantly.
What is mode in statistics?
Mode is the value that appears most frequently in a data set. A set can have no mode (all values are unique), one mode (unimodal), two modes (bimodal), or many modes (multimodal). Mode is especially useful for categorical data where mean and median don't apply.
When should I use median instead of mean?
Use median when your data has outliers, is skewed, or when you want a "typical" value. Common examples include income data, house prices, and test scores with extreme values. The mean is better when data is normally distributed without significant outliers.
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