In general,the binomial probability P(X $\le$ x)is approximated by the area under the normal curve to the left of x + .5.

Question

Quizplus · Accepted Answer

This is called the continuity correction and is commonly used to approximate the binomial distribution with a normal distribution. The .5 is added to account for the fact that the normal distribution is continuous while the binomial distribution is discrete.

In General,the Binomial Probability P(X ≤\le≤ X)is Approximated by the Area Under the Normal Curve to Area

In General,the Binomial Probability P(X $\le$ X)is Approximated by the Area Under the Normal Curve to Area