A,B,C,D

Use the contingency table below to find the probability of the following events. a. A|B b. AIB' c. A'|B' d. Are events A and B independent? # A 20 40 A' 40 30 E) a. P(A|B) = 0.33 (Round to two decimal places as needed.) b. P(A|B') = D (Round to two decimal places as needed.) Use the contingency table to the right to determine the probability of events. a. What is the probability of event A? b. What is the probability of event A'? B B' c. What is the probability of event A and B? A 80 10 d. What is the probability of event A or B? A' 50 10 a. The probability of event A is 0.6000 . (Type an integer or decimal rounded to three decimal places as needed.) b. The probability of event A' is E. (Type an integer or decimal rounded to three decimal places as needed.) In 40 of the 60 years from 1950 through 2009 a certain stock market finished higher after the rst week of trading. In 33 of those 40 years, this market nished higher for the year. The following table gives the first-week and annual performance of the market over this 60-year period. Use the table to answer (a) through (c) below. ANNUAL PERFORMANCE |:I FIRST WEEK Higher Lower Higher 33 7 Lower 10 10 E) a. If a year is selected at random, what is the probability that the market finished higher for the year? 0.7166 (Round to four decimal places as needed.)