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5. (adapted from Ross, 2.31) Three countries (the Land of Fire, the Land of Wind, and the Land of Earth) each make a 3 person team. Each team consists of three ninjas, each of a different rank: one genin (junior ninja), one chunin (journeyman ninja), and one jönin (elite ninja). (a) If a ninja is chosen at random from each of the three different countries, what is the probability of selecting a complete team? (A complete team here is a group consisting of three ninjas, each ninja of a different rank). (b) If a ninja is chosen at Ondom from each of the three different counries, what is the probability that all 3 ninjas selected have the same rank?
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5. (adapted from Ross, 2.31) Three countries (the Land of Fire, the Land of Wind, and...
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