3. Sample for a Poll There are 15,524,971 adults in Florida. If The Gallup organization ran. 14. domly selects 1068 adults without replacement, are the selections independent or dependent? of th If the selections are dependent, can they be treated as being independent for the purposes of calculations? 4. Rule of Complements When randomly selecting an adult, let B represent the event of b. randomly selecting someone with type B blood. Write a sentence describing what the rule of 15 complements is telling us: P(B or B ) = 1. are Finding Complements. In Exercises 5-8, find the indicated complements. a. 5. LOL A U.S. Cellular survey of smartphone users showed that 26% of respondents an- b. swered "yes" when asked if abbreviations (such as LOL) are annoying when texting. What 16. is the probability of randomly selecting a smartphone user and getting a response other are than "yes"? 6. Flights According to the Bureau of Transportation, 80.3% of American Airlines flights ar- rive on time. What is the probability of randomly selecting an American Airlines flight that b . does not arrive on time? 17 7. Flying In a Harris survey, adults were asked how often they typically travel on commercial an flights, and it was found that P(N) = 0.330, where N denotes a response of "never." What does P(N) represent, and what is its value? 8. Sobriety Checkpoint When the author observed a sobriety checkpoint conducted by the Dutchess County Sheriff Department, he saw that 676 drivers were screened and 6 were arrested for driving while intoxicated. Based on those results, we can estimate that P(I) = 0.00888, where I denotes the event of screening a driver and getting someone who is intoxicated. What does P(1) denote, and what is its value? In Exercises 9-20, use the data in the following table, which lists drive-thru order accuracy at popular fast food chains (data from a QSR Drive-Thru Study). Assume that orders are randomly selected from those included in the table. Mcdonald's Burger King Wendy's Taco Bell Order Accurate 329 264 249 145 Order Not Accurate 33 54 31 13 9. Fast Food Drive-Thru Accuracy If one order is selected, find the probability of getting food that is not from Mcdonald's. 10. Fast Food Drive-Thru Accuracy If one order is selected, find the probability of getting an order that is not accurate. 11. Fast Food Drive-Thru Accuracy If one order is selected, find the probability of getting an order from Mcdonald's or an order that is accurate. Are the events of selecting an order from Mcdonald's and selecting an accurate order disjoint events? 12. Fast Food Drive-Thru Accuracy If one order is selected, find the probability of getting an order that is not accurate or is from Wendy's. Are the events of selecting an order that is not accurate and selecting an order from Wendy's disjoint events? 13. Fast Food Drive-Thru Accuracy If two orders are selected, find the probability that they are both from Taco Bell. a. Assume that the selections are made with replacement. Are the events indepen b. Assume that the selections are made without replacement. Are the events independent