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Finding the marginal probability density function for the given value
Suppose that two random variables, X and Y, have bivariate pdf given by:
fXY(x, y) = 2 (x + y), for 0 ≤ x ≤ y ≤ 1.
(a) Show that the marginal or unconditional pdf of X is given by: fX(x) = 1 + 2x - 3x2, 0 ≤ x ≤ 1.
(b) Find the expected value (mean) of X, that is, find E[X]+ = μX.
(c) Find the variance of X, Var(X) = σ2.
For value 10,40,20,50 and 40, value of arithmetic mean is? Simplest measure of dispersion is the Standard deviation, variance, Quartile deviation.
The p-value of the test is closest to:
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To determine whether there exists mean difference among the groups:
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If you have multiple regression output with 2 independent variables and R-Square is .9682, what does R-Square indicate?
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