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 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