Author Question: Determine the adjusted coefficient of determination. A) 0.0419 B) 0.8223 C) 0.7335 D) ... (Read 73 times)

nevelica · **on:** Jun 24, 2018

Determine the adjusted coefficient of determination.

A) 0.0419
B) 0.8223
C) 0.7335
D) 0.0018

Question 2

Are X and Y statistically independent? Explain.

What will be an ideal response?

jasonq · **Reply #1 on:** Jun 24, 2018

Answer to Question 1

C

Answer to Question 2

x 1 2 3
P(x) 0.17 0.38 0.45

y 0 1 2
P(y) 0.28 0.26 0.46

The variables X and Y are not statistically independent since
P(X = 1 ) = 0.17, P(Y = 0 ) = 0.28, and P(X = 1 and Y = 0 ) = 0.10 P(X = 1 ) P(Y = 0 ).