Author Question: Which of the following statements is(are) always true? a. -1 P(Ei) 1 b. P(A) = 1 P(Ac) c. P(A) ... (Read 83 times)

mcmcdaniel · **on:** Jun 24, 2018

Which of the following statements is(are) always true?
a. -1 P(Ei) 1
b. P(A) = 1 P(Ac)
c. P(A) + P(B) = 1
d. both P(A) = 1 P(Ac) and P(A) + P(B) = 1

Question 2

If the coefficient of determination is a positive value, then the coefficient of correlation
a. must also be positive
b. must be zero
c. can be either negative or positive
d. must be larger than 1