Statistics

Range, IQR, Variance, and Standard Deviation

Compute measures of spread: range, IQR, sample variance s², and standard deviation s with full step-by-step work.

Live Calculator · Step-by-Step · Statistics

Inputs

Data Set (comma or newline separated)

Result

Enter values and calculate.

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Range

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IQR

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Variance s²

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Std Dev s

Step-by-Step Work

Your explanation will appear here.

Number Line — Spread Overview

■ IQR box (Q1–Q3) | Median ◆ Mean ⟷ ±1 SD

Understand variance and standard deviation with personalized tutoring.