SOLUTION: In a sporting game, shots are fired at a certain domain D, consisting of three non-overlapping zones. The probability of hitting zone I is 0.05. The probabilities of hitting zones

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Question 586708: In a sporting game, shots are fired at a certain domain D, consisting of three non-overlapping zones. The probability of hitting zone I is 0.05. The probabilities of hitting zones II and III are 0.1 and 0.17 respectively. What is the probability of hitting D?
Answer by ad_alta(240) About Me  (Show Source):
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It's the probability of hitting I or II or III, which is 0.32.