Statistics
Continuity Correction Calculator
Apply a ±0.5 continuity correction to a discrete value.
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When approximating a discrete distribution with a normal curve, shift boundaries by 0.5.
The math behind it
P(X ≤ x) uses x + 0.5; P(X ≥ x) uses x − 0.5, and so on, to cover each integer's full width.
Worked Example
P(X ≤ 10) → use 10.5 in the normal approximation.
Frequently Asked Questions
Why correct?
It compensates for replacing discrete bars with a smooth curve.
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