As a general rule, one can use the normal distribution to approximate a binomial distribution whenever n(π - 1) is at least 5.

Name: As a general rule, one can use the normal distribution to approximate a binomial distribution whenever n(π - 1) is at least 5.
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The correct rule is to use the normal distribution to approximate a binomial distribution when both nπ and n(1-π) are at least 5, where n is the number of trials and π is the probability of success.

As a General Rule, One Can Use the Normal Distribution