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8) For zz values of -1.54 and 3, what is the probability, P(1.54

8) For zz values of -1.54 and 3, what is the probability, P(1.54

9)A set of exam scores is normally distributed and has a mean of 79.5 and a standard deviation of 9.4. What is the probability that a randomly selected score will be less than 79?

10)A set of exam scores is normally distributed and has a mean of 71 and a standard deviation of 9. What is the probability that a randomly selected score will be greater than 85.4?

11)A set of exam scores is normally distributed and has a mean of 79 and a standard deviation of 7.4. What is the probability that a randomly selected score will be between 75 and 79?

12)Suppose you know that the probability, P(z

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