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In Mathematics / High School | 2014-11-14

Out of the 50 digital video recorders in an inventory, four are known to be defective. What is the probability you randomly select an item that is not defective?

Asked by jlwomwa

Answer (2)

There are 4 defective digital video recorders out of 50 digital video recorders. Probability that a video recorder is defective = 4/50 = 2/25 = 0.08. Therefore, probability that a video recorder is not defective = 1 - 4/50 = 46/50 = 23/25 = 0.92 I hope that my answer is helpful! Let me know if you need something more :)

Answered by Kalahira | 2024-06-24

The probability of randomly selecting a digital video recorder that is not defective is 0.92, which means there is a 92% chance it will be a good recorder. This was calculated by determining that there are 46 non-defective recorders out of a total of 50. Hence, P ( not defective ) = 50 46 ​ = 0.92 .
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Answered by Kalahira | 2024-09-06