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OpenStudy (anonymous):
HELPPPPP A random sample of 325 new Crest toothbrushes showed that 14 were defective. a) What is your estimate of the probability that a new Crest toothbrush is defective? b) What is your estimate of the probability that a new Crest toothbrush is not defective? c) Either a toothbrush is defective or not. What is the sample space in this problem? d) Do the probabilities assigned to the sample space add up to one?
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