Question 1

Is 'average' the same as 'mean'?

Accepted Answer

In everyday use, yes — 'average' almost always refers to the arithmetic mean: the sum of all values divided by the count. This calculator also computes median and mode, which are other types of average. The Mean result is always the arithmetic mean.

Question 2

Why is there no mode shown for my data?

Accepted Answer

Mode is the value that appears most often. When every value in your list appears exactly once — no repeats — no single value occurs more than any other, so the mode is undefined. The calculator returns an empty mode result rather than inventing one. Add a duplicate value to see a mode appear.

Question 3

What does 'multimodal' mean?

Accepted Answer

A dataset is multimodal when two or more values share the highest frequency. For [1, 2, 2, 3, 3], both 2 and 3 appear twice — both are modes. The calculator lists all modes when there is more than one.

Question 4

How is the median calculated for an even number of values?

Accepted Answer

Sort the values smallest to largest. For an even count, the median is the average of the two middle values. For [3, 4, 5, 6, 8, 8] — six values — the two middles are 5 and 6, so the median is (5 + 6) ÷ 2 = 5.5.

Question 5

Can I include negative numbers?

Accepted Answer

Yes. The calculator handles any finite number — positive, negative, zero, or decimal. Negative numbers affect the mean, range, and min/max in the expected way.

Question 6

How many decimal places does the calculator use?

Accepted Answer

The engine performs no rounding internally — it computes exact values. Rounding for display (typically 2–4 decimal places) is applied by the interface, not by the calculation itself.

Statistic	Formula	What it answers
Mean	sum ÷ count	Fair share if total were distributed equally
Median	middle of sorted list	Middle value — unaffected by outliers
Mode	most frequent value(s)	Most common value — empty when all are distinct
Range	max − min	Spread of the data

Average Calculator

What each statistic measures

Example — [4, 8, 6, 8, 5, 3]

When there is no mode

Frequently Asked Questions

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