T-shirts are regularly priced at $18.00. The sale price is 20% off the regular price. What is the sale price of a T-shirt?
1 answer:
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Answer:
44
Step-by-step explanation:
Both of these conditions must be true in order for the assumption that the binomial distribution is approximately normal. In other words, if and
then we can use a normal distribution to get a good estimate of the binomial distribution. If either np or nq is smaller than 5, then a normal distribution wouldn't be a good model to use.
side note: q = 1-p is the complement of probability p