Five of the 100 digital video recorders (DVRs) in an inventory are known to be defective. What is the probability you randomly select a DVR that is not defective?
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To find the probability that you randomly select a DVR that is not defective, first calculate the number of non-defective DVRs. Since there are 100 DVRs in total and 5 are defective, that leaves you with 100 - 5 = 95 non-defective DVRs. Now, the probability of selecting a non-defective DVR is the number of non-defective DVRs divided by the total number of DVRs: Probability = (Number of non-defective DVRs) / (Total number of DVRs) = 95 / 100 = 0.95. So the probability of randomly selecting a DVR that is not defective is 0.95, or 95%.