Exam 3: Probability

If A and B are independent events with P(A)= 0.60 and P(B)= 0.70,then the probability that A occurs or B occurs or both occur is:

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION: In a survey of top executives,it was found that 46% had either traveled internationally on business or could fluently speak a foreign language.The probability that an executive who had not traveled internationally could speak a foreign language was 10%.It was found that only 4% of the executives had traveled internationally and could speak a foreign language. -What is the probability that an executive who speaks a foreign language fluently has traveled internationally?

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION: The production manager at a local manufacturing plant is concerned about work stoppages in the four production lines.In particular,the manager is evaluating the likelihood of the next stoppage occurring on production line 1. -Based on previous stoppage records,the manager figures that the probability that production line 1 is stopped next is 25%.This is an example of:

Which of the following is an example of a random experiment?

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION: Three airlines serve a small town in Indiana.Airline A has 60% of all the scheduled flights,airline B has 30%,and airline C has the remaining 10%.Their on-time rates are 80%,60%,and 49% respectively.Define event D as an airline arrives on time. -Calculate P(B ∩D).