A factory makes light bulbs over a long period 4 of them

Reference no: EM13613422

A factory makes light bulbs. Over a long period, 4% of them are found to be faulty. A random sample of 100 light bulbs is tested.

(a) Write down the expected number of faulty bulbs in the sample.

(b) Find the probability that three bulbs are faulty.

Reference no: EM13613422

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