Explanation

Mean (average): sum of all values divided by count. Median: middle value when arranged in order (or average of two middle values if even count). Mode: most frequent value.

Example: Data = 2, 3, 3, 5, 7. Mean = 20/5 = 4. Median = 3 (middle value). Mode = 3 (appears twice). Different measures suit different situations.

Mean is affected by outliers (extreme values). Median is resistant to outliers – better for skewed data like income. Mode is useful for categorical data. Choose the appropriate measure for your purpose.