Mathematics, 08.11.2019 04:31 maymaaz
Amachine produces washers whose diameters are normally distributed with a mean of 40 mm and a standard deviation of 2 mm. a. find the probability that a washer has a diameter less than 37 mm. b. find the probability that a washer has a diameter greater than 45 mm. every week 300 washers are tested. c. calculate the expected number of washers that have a diameter between 35 mm and 43 mm.
Answers: 1
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