Continuity Correction Calculator

A continuity correction is used when you want to use a normal distribution to approximate a binomial distribution.
This calculator allows you to apply a continuity correction to a normal distribution to find approximate probabilities for a binomial distribution.
Simply enter the appropriate values for a given binomial distribution below and then click the “Calculate” button.
Exact binomial probabilities:

P(X = 3): 0.23040

P(X ≤ 3): 0.92196

P(X < 3): 0.68256

P(X ≥ 3): 0.31744

P(X > 3): 0.08704

Approximate probabilities using continuity correction:

P(2.5 < X < 3.5): 0.23040

P(X < 3.5): 0.92196

P(X < 2.5): 0.68256

P(X > 2.5): 0.31744

P(X > 3.5): 0.08704

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