Mark is late to class every day with the probability of .2 a) What is the probability that he was at most one working day late to class? b) For which maximum number of working days can we be at least sure that at least 90% as many times (as the number of required working days) he was not late to class?
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b) For which maximum number of working days can we be at least sure that at least 90% as many times (as the number of required working days) he was not late to class?
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answer is b.
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For which maximum number of working days can we be at least sure that at least 90% as many times (as the number of required working days) he was not late to class?
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