Johnson Electronics makes calculators. Consumer satisfaction is one of the top priorities of the companys management. The
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a. Find the probability that exactly 29 of the 500 calculators will be returned for refund or replacement within a 2-year period.
b. What is the probability that 27 or more of the 500 calculators will be returned for refund or replacement within a 2-year period?
c. What is the probability that 15 to 22 of the 500 calculators will be returned for refund or replacement within a 2-year period?
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