1. A roulette wheel has 38 slots in which the ball can land. Two of the slots are green, 18 are red, and 18 are black. The ball is equally likely to land in any slot. The roulette wheel is going to be spun twice and the outcomes of the two spins are independent. Reference: Ref 12-1 The probability that it lands on green at least once is A. 0.9474. B. 0.1053. C. 0.1025. D. 0.0526.
2. A survey of college students finds that 35% like country music, 25% like gospel music, and 15% like both. Reference: Ref 12-2 The proportion of students that like country music but not gospel music is A. 15%. B. 20%. C. 25%. D. 40%.
3. A survey of college students finds that 35% like country music, 25% like gospel music, and 15% like both. Reference: Ref 12-2 The proportion of students that like neither country music nor gospel music is A. 75%. B. 60%. C. 55%. D. 45%.
4. A survey of college students finds that 35% like country music, 25% like gospel music, and 15% like both. Reference: Ref 12-2 The proportion of students that like either country music or gospel music is A. 75%. B. 60%. C. 55%. D. 45%.
5. A survey of college students finds that 35% like country music, 25% like gospel music, and 15% like both. Reference: Ref 12-2 The conditional probability that a student likes gospel music given that he or she likes country music is A. 75%. B. 43%. C. 55%. D. 45%.