Mathematics, 24.12.2019 17:31 ITSFreeBird
Afactory makes silicon chips for use in computers. it is known that about 90% of the chips meet specifications. every hour a sample of 18 chips is selected at random for testing and the number of chips that meet specifications is recorded. what is the approximate mean and standard deviation of the number of chips meeting specifications?
a. m = 1.625; s = 1.265
b. m = 162; s = 1.414
c. m = 16.2; s = 1.62
d. m = 16.2; s = 4.025
e. m = 16.2; s = 1.27
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