Let X be a random variable with probability density function, What is EX? f(x) = x(5-x) for 0≤x≤5 0 5/2 1/2 3/4 Does not exist otherwise

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A: here use basic of regression

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A: Population Parameters and Sample Statistics:

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A: If X is a continuous random vriable with expected value 4 and standard deviation 3.

Q: IF Q2 is equal to D5, D5 is equal to _

A: According to the given information in this question Q2 is the median and D5 is also median

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A: First we have to arrange the data in ascending order as 20, 22, 38, 39, 53, 60 Then number of…

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A: Here Given  P(A)=0.98 P(B)=0.96 P(A and B)=0.94

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Q: No. 1 2 3 4 5 90 78 90 X 75 85 84 88 S 6 10 3 12 Z -1.4 -4 1 6

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Q: You estimated the following regression. What value would you predict for Y, if X = 82?

A: From the given output, Y-intercept a = 57.64894 And slope b = 11.0214

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Q: Suppose Y is normally distributed with mean 5.4 and variance 1.69. Determine the following…

A: Given that : μ = 5.4 ?2 = 1.69 By using standard normal distribution we solve this problem.    Note…