Statistics & Probability

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Continuity Correction Calculator.

Convert an integer value to its half-unit continuous interval.

On-device calculationNo signup
01

Set your values

Results update as you type.

Lower bound: 11.5

Lower bound

11.500000
Upper bound: 12.5

Upper bound

12.500000
Interval width: 1

Interval width

1.000000

Results update automatically as you type.

Use Cases

Adjusting Normal Approximation

When using the normal approximation to binomial probabilities, apply continuity correction to improve accuracy for discrete data.

Example: For X=10, correction gives 9.5 and 10.5.

Educational Statistics Practice

Students and learners can quickly verify their manual continuity correction calculations for homework or exam preparation.

Example: Check that for n=25, correction is 24.5 and 25.5.

Frequently Asked Questions

What is continuity correction?
Continuity correction is an adjustment made when approximating a discrete distribution (like binomial) with a continuous one (like normal). It involves adding or subtracting 0.5 to the integer value to improve the approximation.
How do I use this calculator?
Simply enter an integer value in the provided field. The calculator instantly computes the continuity correction (value ± 0.5) and displays the results, updating as you type.
Why is the result debounced?
Debouncing means the calculation updates after a short pause in typing, preventing excessive recalculations and ensuring smooth performance, especially when entering large numbers.

Tips & Common Mistakes

Tips

  • Enter only integer values; the calculator expects whole numbers.
  • Use the corrected values (x-0.5 and x+0.5) in your normal approximation calculations.
  • Remember that continuity correction is most useful when the sample size is moderate and the probability is not too extreme.
  • Double-check your original integer value before relying on the result for your analysis.

Common Mistakes to Avoid

  • Entering a decimal or non-integer value, which may not be valid for this calculator.
  • Forgetting to apply the correction in both directions (minus and plus 0.5) when needed.
  • Using the corrected value as if it were the original integer in further discrete calculations.

Last updated: August 13, 2026