Question: Use Normal approximation to the Binomial. Among all the computer chips produced by a certain factory, 6 percent are defective. A sample of 400 chips

Use Normal approximation to the Binomial.

Among all the computer chips produced by a certain factory, 6 percent are defective. A sample of 400 chips is selected for inspection.

What is the probability that this sample contains between 20 and 25 defective chips (including 20 and 25)?

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