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Probability Experiment. A probability experiment consists of spinning the spinner used in problem 14 and rolling a six-sided die. What is the probability of spinning an even number and then rolling an odd number greater than 2?

18.  Use the frequency distribution in Table 4. What is the probability that a voter chosen at random is between 21 and 44 years old? (Round results to 3 decimal places.)

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 Table 4. Ages of Voters Ages of Voters Frequency (In millions) 18 to 20 years old 5.8 21 to 24 years old 8.5 35 to 44 years old 21.7 45 to 64 years old 51.7 65 years old and over 26.7

19.  Use the pie chart in Figure 3 to find the probability. What is the probability that a student attained C or less on the quiz?

Figure 3. The grades attained by students on a recent quiz.

Problems 20-21

Instructions 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.

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.)

Problems 22-25

Use the information in Table 5 to answer the questions. Round results to 3 decimal places. The table shows the number of male and female students enrolled in Nursing at a university in a recent semester.

 Table 5. Students Enrolled in Nursing Nursing Majors Non-Nursing Majors Total Males 121 1197 1318 Females 732 1458 2190 Total 853 2655 3508

22. Find the probability that a randomly selected student is a nursing major.

23. Find the probability that a randomly selected student is a nursing major given that the student is a male.

24. Find the probability that a randomly selected student is a nursing major and male.

25. Are the events being a male student and being a nursing major independent or dependent events? Show the probability calculations needed to support your answer to get full credit

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