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Giriş

Interquartile Range Calculator — Compute the IQR (Q3 - Q1) of a dataset. Enter Dataset (comma-separated) to get an instant, accurate result.

Formül

IQR = Q3 − Q1, the range of the middle 50% of the data (both quartiles found by linear interpolation).

Adım adım

Enter the Dataset (comma-separated).
Click Calculate to see your result instantly.

Gerçek dünya örneği

Example: With Dataset (comma-separated) = 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, the Interquartile Range Calculator gives Q1: 3.25, Q3: 7.75, Iqr: 4.5.

Sıkça Sorulan Sorular

Why use IQR instead of range?

IQR ignores the most extreme 25% on each end, so it is far less sensitive to outliers than the full range.

How is IQR used to detect outliers?

A common rule flags values below Q1 − 1.5×IQR or above Q3 + 1.5×IQR as potential outliers.

What inputs does the Interquartile Range Calculator need?

You'll need to provide: Dataset (comma-separated). All fields use sensible defaults, so you can see a working example immediately and then adjust the values to match your own numbers.

How accurate is the Interquartile Range Calculator?

The Interquartile Range Calculator applies the formula exactly as calculated — IQR = Q3 − Q1, the range of the middle 50% of the data (both quartiles found by linear interpolation). — so results are precise for the inputs you provide. Accuracy depends on entering correct, realistic input values.

Is the Interquartile Range Calculator free to use?

Yes, the Interquartile Range Calculator is completely free, requires no signup, and runs instantly in your browser.