Average/Mean Calculator

How to Calculate an Average

The average, or arithmetic mean, is calculated by adding all the values together and dividing by the number of values. It is the most commonly used measure of central tendency in statistics and everyday life.

Mean, Median, and Mode

Mean: the sum of all values divided by the count. Median: the middle value when the data is sorted in order. Mode: the value that appears most frequently. Each one is useful in different contexts depending on the shape of the data distribution.

Frequently Asked Questions

What is the difference between average and median?

The average (mean) can be skewed by extreme values (outliers), while the median always represents the exact middle point of the data. For data sets with outliers, the median is often more representative of the typical value.

How do I calculate a weighted average?

A weighted average multiplies each value by its corresponding weight, sums the products, and divides by the total weight. This is useful when different items have different levels of importance, such as grades with different credit hours.