Question: 1. If X is uniformly distributed over the interval 8 to 12, inclusively (8 SX S12), then the mean() of this distribution is A. 10

1. If X is uniformly distributed over the interval 8 to 12, inclusively (8 SX S12), then the mean() of this distribution is A. 10 B. 20 C. 5 D. incalculable 2. Suppose X is a normal random variable with mean 60 and standard deviation 2. A Z score was calculated for a number, and the Z score is -1.3. What is X? A. 58.7 B. 61.3 C. 62.6 D. 57.4

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