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Mean vs Median vs Mode

Mean (average): Sum of all values divided by the count. Most commonly used but sensitive to outliers.

Median: The middle value when numbers are sorted. Better for skewed data (e.g. salaries where a few very high values distort the mean).

Mode: The value that appears most frequently. Useful for categorical data and finding the most common value.

Frequently asked questions

What is the difference between mean and average?

In everyday language they mean the same thing. Technically, "average" can refer to mean, median or mode. The arithmetic mean is the most common type of average.

When should I use median instead of mean?

Use the median when your data has extreme values (outliers) that would distort the mean. For example, median household income is more representative than mean income because very high earners inflate the mean.

Can there be more than one mode?

Yes. If two or more values appear with equal maximum frequency, all of them are modes. This is called a bimodal or multimodal distribution.