Suppose IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. What is the probability a random sample

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A: given data normal distributionμ = 70σ = 12n = 9 P(x¯<66) = ?

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A: Given that : SSxy = 85 SSx = 82.50 SSy = 97.60  = 5.5  =6.8 b = 1.0303

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Q: 17.4 17.04 5.86 P(X=x) -23 0.50 [Choose] [Choose ] [Choose ] -17 0.25 -9 0.15 -3 0.10

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Q: Assume that adults have IQ scores that are normally distributed with a mean of μ= 105 and a standard…

A: given data normal distributionμ = 105σ = 15p(X<129) = ?

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A: Farmula used  V(X)=E(X2)-(E(X))2

Q: Timed

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A: Hedging:  It means , which eliminates all risk in portfolio known as Hedging .

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Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores…

A: given data normal distributionμ = 100σ = 15P(X<Z) = 0.9X = ?

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Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores…

A: given data normal distributionμ = 100σ = 15P(x>Z) = 0.8x = ?

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Q: Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those…

A: given data normal distributionμ = 100σ= 15P(x>91) = ?

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A: Hint: As n→∞, it will follow Normal distribution with mean μ and variance σ2.

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A: given data normal distributionμ = 47.8σ = 12.6for top 2.62% of distribution x = ?

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A: Note : As per our guidelines we are supposed to answer only first 3 sub parts for you. "Since you…