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OpenStudy (anonymous):
in an experiment a fair coin is tossed 12 times and the face that appears for each toss is recorded. How many elements of the sample space will have no tails? How many elements of the sample space will have exactly 1 tail? How many elements of the sample space will start and end with different faces and have a total of exactly two tails? How many elements of the sample space will start or end with a tail and have an adjacent pair or triple of tails and include a total of exactly three tails?
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OpenStudy (anonymous):
How many elements of the sample space will have exactly 1 tail? evidently 12
OpenStudy (anonymous):
How many elements of the sample space will have no tails? one, the one that is all heads
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