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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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OpenStudy (anonymous):
i think a,c is: a. 4.31% c. 95.69%
OpenStudy (anonymous):
what about b and d ? @felavin
OpenStudy (anonymous):
b: i think 0.06 or 6%
OpenStudy (anonymous):
you know d?
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