Use the method of natural frequencies to find the indicated probability.Pierre has three coins one of which is biased so that it turns up tails 60% of the time. If he randomly selects one of the coins, tosses it three times, and obtains three tails, what is the probability that this is the biased coin?
A. 0.44
B. 0.216
C. 0.333
D. 0.464
Answer: D
Mathematics
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Solve the equation f(x) = 0 analytically and then use the graph of y = f(x) to solve the inequalities f(x) < 0 and 
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A. ?; ?; (-?, ?) B. ?; (-?, ?); ? C. {3}; [3, ?); (-?, 3) D. {3}; (-?, 3); [3, ?)
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x
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