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A. certain B.impossible 15. A bag contains ten black marbles, twenty white marbles, and five blue marbles. What is the probability of picking green marbles? C. 2/7 B. 1/7 D. 4/7 A. 0 16. A bag contains ten black marbles, twenty white marbles, and five blue marbles. What is the probability of picking blue marbles? A. 0 B. 1/7 C. 2/7 D. 4/7 17. A bag contains ten black marbles, twenty white marbles, and five blue marbles. What is the probability of picking white marbles? A. 0 B. 1/7 C. 2/7 D. 4/7 18. The sun will rise tomorrow. A. As likely B. certain C. impossible D. unlikely 19. When a coin is tossed, what is the probability of the coin will land on head? A. 0 B. 1/2 C. 1 D. 2/2 20. The spinner is numbered 1,2,3,4,5,6 What is the probability that the spinner will land on an even number? A. 0 B. 1/6 C. 1/2 D. 1
