Repeated mode
10, 12, 12, 15, 18, 21, 21, 21, 25Mode = 21
Use this free mean, median, mode, range calculator to find the average, middle value, most frequent value, range, sorted data, steps, copy, and history.
Find the average, median, most frequent value, and range quickly.
Check small data sets for school, study, and everyday comparisons.
See sorted data so the median and range are easy to verify.
Copy the four headline statistics into notes or homework.
Mode = 21
No mode
Range = 21
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Quick answers about formulas, inputs, examples, result copying, and private in-browser history.
The mean is the arithmetic average. Add all values, then divide by how many values there are.
The median is the middle value after the data is sorted. If there are two middle values, their average is the median.
The main inputs are the numbers, operation, mode, or known values the calculator needs. Keep units consistent, enter percentages the way the page label shows, and use the examples as a quick check before trusting the answer.
Read the headline answer, then check the supporting lines and examples to understand how the calculator got there. If one input changes, rerun the tool and compare the new answer instead of guessing.
Check units, signs, rounding, and the selected mode before copying the answer. If the number feels weird, rerun one of the examples first, then put your own values back in slowly.
The mode is the most frequent value. A data set can have one mode, multiple modes, or no mode.
The range is the maximum value minus the minimum value.
Use the full Statistics Calculator when you also need quartiles, variance, standard deviation, count, or sum.
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