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1. If an event can occur five times out of 100, its probability value is
a) 0.2 b) 0.8 c) 0.95 d) 0.05 2. Suppose you had flipped a fair coin 19 times and "tails" had come up each time. The probability of now tossing a "head" on the 20th flip would then be
a) 0.5 b) 0.05 c) 0.95 d) 0.99
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