- The random variable z is the normal score find p -1.31z0.31?

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Sampling mathods and techniques in business statistics? What percentage of the data falls outside 2 standard deviation of the mean? What are the features of a binomial distribution? Who establish the link between the concept of probability and statistics? Event A has probability 0.4 event B has probability 0.5 If A and B are disjoint then the probability that both events occur is?

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