8) A normal random variable x has an unknown mean and the standard deviation. The probability that X exceeds 4 is 0.9772, and The probability that X exceeds 5 is 0.9332. Find u and o.

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A: It is given that  ΣX = 32 ΣY = 528 ΣXY = 2136 ΣX2 = 130 ΣY2 = 34872 n = 8

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Q: (f) P(A and C) = 0.069

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