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7. [-/2 Points] DETAILS TANFIN12 7.6.021. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Data compiled by the Highway Patrol Department regarding the use of seat-belts by drivers in a certain area after the passage of a compulsory seat-belt law are shown in the accompanying table. (Round your answers to three decimal places.) Percentage of Percent of Group Stopped Drivers Drivers in Group for Moving Violation Group I (using seat-belts) 0.4 Group II (not using seat-belts) 0.3 (a) If a driver in that area is stopped for a moving violation, what is the probability that he or she will have a seat-belt on? (b) If a driver in that area is stopped for a moving violation, what is the probability that he or she will not have a seat-belt on? Need Help? Read It Watch It 8. [-/1 Points] DETAILS TANFIN12 7.6.028. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER In a recent senatorial election, 47% of the voters in a certain district were registered as Democrats, 32% were registered as Republicans, and 21% were registered as Independents. The incumbent Democratic senator was reelected over her Republican and Independent opponents. Exit polls indicated that she gained 76% of the Democratic vote, 26% of the Republican vote, and 27% of the Independent vote. Assuming that the exit poll is accurate, what is the probability that a vote for the incumbent was cast by a registered Republican? (Round your answer to three decimal places.) Need Help? Read It Watch It