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I need help with #9 9. [-/9.09 Points] DETAILS BBBASICSTAT8ACC 7.5.006.MI. MY NOTES ASK YOUR TEACHER Suppose x has a distribution with a mean of

I need help with #9

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9. [-/9.09 Points] DETAILS BBBASICSTAT8ACC 7.5.006.MI. MY NOTES ASK YOUR TEACHER Suppose x has a distribution with a mean of 90 and a standard deviation of 20. Random samples of size n = 64 are drawn. (a) Describe the x distribution. O x has a binomial distribution. O x has a normal distribution. O x has an unknown distribution. O x has a Poisson distribution. O x has a geometric distribution. O x has an approximately normal distribution. Compute the mean and standard deviation of the distribution. (For each answer, enter a number.) Up = OF = (b) Find the z value corresponding to x = 85. (Enter an exact number.) Z = (c) Find P(x

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