THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
A market research firm regularly assembles panel of consumers to test new television commercials for effectiveness.The consumers are told that they are evaluating a pilot TV program.After viewing the hour-long program,complete with commercials,they are asked many questions about the program and some about the commercial - the actual object of research.A tabulation of results from one panel counted the number of panelists who recalled the product incorrectly,the number who recalled the product correctly and had a favorable opinion,and the number who recalled the product correctly and had an unfavorable opinion.

-Use the addition rule to find the probability that a randomly chosen consumer recalled the commercial.