SOLUTION: each day your teacher randomly calls on 5 students in your class of 30. what is the probability you will be called on today?
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Question 590143: each day your teacher randomly calls on 5 students in your class of 30. what is the probability you will be called on today? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! each day your teacher randomly calls on 5 students in your class of 30. what is the probability you will be called on today?
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# of groups of 5 students that does not include you is 29C5 = 118755
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Total number of groups of 5: 30C5 = 142506
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P(not called today) = 118755/142506 = 0.8333
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P(called today) = 1 0.8333 = 0.1667
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Cheers,
Stan H.
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