Question: Please solve from question 19 to question 2, and please tell me how it works Problem 19. Use the pie chart below to find the

Please solve from question 19 to question 2, and please tell me how it works

Problem 19. Use the pie chart below to find the required probability. The pie chart represents grades attained by students on a recent quiz. 19 25 W J 19. What is the probability that a student attained less than C on the quiz? Problems 20 and 21. Use the information below to answer the questions. Pickup Trucks. In a survey, 840 adults were asked if they drive a pickup truck and if they drive a Ford. The results showed that one in 7 adults surveyed drives a pickup truck, and two in eleven adults surveyed drives a Ford. Of the adults surveyed that drive Fords, two in nine drive a pickup truck. Adults who drive Adults a pickup who drive truck a Ford 20. Find the probability that a randomly selected adult drives a Ford and drives a pickup truck. 21. Are the events driving a Ford and driving a pickup truck independent or dependent ? (Note: You must show the calculations needed to justify your decision to obtain full credit.)

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