SOLUTION: Amy and Bill are two of the 10 people joining a massive online game. If two people are to be selected at random as group leaders, find the probability that both Amy and Bill are s
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Question 1190820: Amy and Bill are two of the 10 people joining a massive online game. If two people are to be selected at random as group leaders, find the probability that both Amy and Bill are selected. Answer by ikleyn(52864) (Show Source):
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Amy and Bill are two of the 10 people joining a massive online game.
If two people are to be selected at random as group leaders, find the probability
that both Amy and Bill are selected.
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In all, there are = = 45 possible pairs that can be selected as leaders.
Of these 45 pairs, only one pair is (Amy,Bill).
So the probability that the pair (Amy,Bill) is selected, equals . ANSWER