Young's modulus is a quantitative measure of stiffness of an elastic material. Suppose that for metal sheets of a particular type, its mean value and standard deviation are 75 GPa and 1.6 GPa, respectively. Suppose the distribution is normal. (Round your answers to four decimal places.) USE SALT

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A: P(A  B)=0.4P(A B)=0.2

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A: The mean is 5620 and the standard deviation is 429.46.

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A: From the above part we haven(C) = n(B) ={ (1,4),(4,1),(2,3),(3,2) }n(CB) = { (2,3),(3,2) }

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A: It is given that Red balls = 8White balls = 4Total balls = 12

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A: P(Spam)=0.20P(not a spam)=1-0.20=0.80P(Detected | Spam)=0.90P(Detected | not a spam)=0.15

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