5) The width of bolts of fabric is normally distributed with mean 950 mm and standard deviation 10 mm. a) What is the probability that a randomly chosen bolt has a width between 947 and 958 mm? b) What is the approximate value of C such that a randomly chosen bolt has width less than C with probability 0.8531?
5) The width of bolts of fabric is normally distributed with mean 950 mm and standard deviation 10 mm. a) What is the probability that a randomly chosen bolt has a width between 947 and 958 mm? b) What is the approximate value of C such that a randomly chosen bolt has width less than C with probability 0.8531?
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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Transcribed Image Text:5) The width of bolts of fabric is normally distributed with mean 950 mm and standard
deviation 10 mm.
a) What is the probability that a randomly chosen bolt has a width between 947 and
958 mm?
b) What is the approximate value of C such that a randomly chosen bolt has width
less than C with probability 0.8531?
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