Find the arithmetic mean of any list of numbers, plus sum and count for context.
mean = sum of values ÷ number of values
Average of 4, 8 and 12 is 24 ÷ 3 = 8.
Averages condense many observations into one representative figure — average spend per customer, average commute time, average score across tests. The mean uses every value, which makes it sensitive to outliers.
When data contains extreme values (one huge income among modest ones), the median often describes the 'typical' case better than the mean. Compare both using the mean-median-mode calculator.
Colloquially yes. Statistically, 'average' can refer to mean, median or mode; the arithmetic mean is the most common interpretation.
Only take a straight mean when each percentage carries equal weight. Otherwise weight them by their sample sizes first.
All three measures of central tendency at once — mean, median and mode — plus range.
Sample and population standard deviation, variance and summary statistics for your data.
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