Author Question: Suppose that the probability of event A is 0.2 and the probability of event B is 0.4 . Also, suppose ... (Read 53 times)

sjones · **on:** Jul 24, 2018

Suppose that the probability of event A is 0.2 and the probability of event B is 0.4 . Also, suppose that the two events are independent. Then P(AB) is:
a. P(A) = 0.2
b. P(A) / P(B) = 0.2/0.4 =
c. P(A)P(B) = (0.2)(0.4) = 0.08
d. None of the above.

Question 2

Suppose that a 95 confidence interval for the proportion of first-year students at a school who played in intramural sports is 35 plus or minus 5. The confidence level for the confidence interval is
a. 5
b. 35
c. 95
d. None of the above