Question

Of 100 electrical relays produced at a factory, on average 1 is defective. in a production run of 500 electrical relays, what is the probability that the number of defective relays is at most 2?

Answers

  1. The probability that the number of defective relays is at most 2 is 0.1246.

    How to calculate the probability?

    It should be noted that of 100 electrical relays produced at a factory, on average 1 is defective. This implies that the probability of a defective is 0.01.
    Therefore, the probability that the number of defective relays is at most 2 will be:
    = e^-5 × (5^0/0! + 5/1! + 52/2!).
    = 0.1246
    Therefore, the probability that the number of defective relays is at most 2 is 0.1246.
    Learn more about probability on:
    brainly.com/question/24756209
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