Five gadgets are taken one after another from an assembly line

MATHEMATICS · Subjective · CBSE · Mathematics · Probability · Probability

Problem

Five gadgets are taken one after another from an assembly line. For each gadget, the probability that it is defective is 0.05, independently of the others. Given that the first gadget inspected is not defective, calculate the probability that at least one of the remaining four gadgets is defective.

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