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Problems 3A, 3B, & 3C 3. The given probability distribution describes customer ratings for a Harry Potter blanket at Target. Find: (8 pts) Stars (x)

Problems 3A, 3B, & 3C

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3. The given probability distribution describes customer ratings for a Harry Potter blanket at Target. Find: (8 pts) Stars (x) Ratings P(x) a) Expected value (mean average) 5 76% 4 13% 3 2% 2 2% b) Standard deviation (SD = sigma) 1 7% c) Low and High Normal limits

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