Suppose n> 1. Let X₁, X₂, mean and variance o². Let X₁ = (a) Var(4X₁-3X₂) DLX21 Xn be independently and identically distributed (iid) with 1 X₁. Find 71

Q: find the z-score that has 30.5% of the distributions area to its left.

A: From the given information, PZ<z=30.5%⇒PZ<z=0.305

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Q: Let x be a random variable that represents red blood cell (RBC) count in millions of cells per cubic…

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A: Given that  Population proportion p=0.50 Sample size n =40

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A: The provided information is as follows:The  is exponentially distributed with the mean 3..The mean…

Q: The number of cracks that need repair in a section of interstate highway follows a Poisson…

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A: Given: Population proportion of people with IQ score over 100 is 50%; P=0.5 Sample size n=400

Q: 4. Suppose X1 is normally distributed with a mean of 3 and standard deviation of 0.3. Suppose X2 is…

A: It is given that X1~N(3,0.3) and X2~N(5,0.7). That is, E(X1)=3, SD(X1)=0.3 and E(X2)=5, SD(X2)=0.7.…

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Q: Assume that adults have IQ scores that are normally distributed with a mean of mμ=100 and a standard…

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