Even Though the Normal Probability Distribution Deals with Continuous Variables

Multiple Choice

Even though the normal probability distribution deals with continuous variables, under certain circumstances we can use it to approximate various discrete probability distributions. Under which of these conditions is the use of the normal probability distribution permissible?

A) in the case of binomial probabilities, when np > 5 and also nq > 5
B) in the case of Poisson probabilities, when> 100
C) in the case of hypergeometric probabilities, when np > 1 and also nq > 1