To determine the probability of getting no more than 3 events of interest in a binomial distribution,you will find the area under the normal curve for X = 2.5 and below.

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Quizplus · Accepted Answer

To determine the probability of getting no more than 3 events of interest in a binomial distribution, you sum the probabilities of getting 0, 1, 2, and 3 events of interest directly using the binomial probability formula or use a binomial cumulative distribution function, not by finding the area under the normal curve for X = 2.5 and below. The normal approximation might be used for large sample sizes with appropriate continuity correction, but the specific approach mentioned is incorrect.

To Determine the Probability of Getting No More Than 3