The manufacturing of semiconductor chips produces 2% defective chips. Assume that the chips are independent and that a lot contains 1000 chips. Approximate the following probabilities: _________.a. More than 25 chips are defective. b. Between 20 and 30 chips are defective.

Mathematics · High School · Thu Feb 04 2021

Answered on

Given : Manufacturer makes 2% defective chips 

and, number of chips in a lot = 1000 chips

 

2% of 1000 = (2/100) * 1000

                     = 20 chips

 

Therefore, option (b) is correct.

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