Question 664428: 17. If events A and B are complementary events, each with non-zero probability, then
a. and are mutually exclusive
b. A and B are independent
c. both (a) and (b)
d. neither (a) nor (b)
18. If A and B are independent events then
a.
b.
c. both (a) and (b)
d. neither (a) nor (b)
19. In selecting a sample from a population for the purpose of making an inference from the sample about the population, it is important
a. that the sample be chosen randomly
b. that the sample have a minimum size of n = 30
c. both (a) and (b)
d. neither (a) nor (b)
Answer by jim_thompson5910(35256)   (Show Source):
You can put this solution on YOUR website! Only post *one* problem at a time please.
17. If events A and B are complementary events, each with non-zero probability, then
a. and are mutually exclusive
b. A and B are independent
c. both (a) and (b)
d. neither (a) nor (b)
This is because if A and B are complementary, then P(A) + P(B) = 1, which implies they are mutually exclusive.
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