SOLVED: Two different factories both produce certain automobile parts. The probability that a component from the first factory is defective is 2%, and the probability that a component from the second factory is defective is 5%. A supply of 180 parts was obtained, with 100 from the first factory and 80 from the second factory.(a) What is the probability that a part chosen at random is from the first factory?(b) What is the probability that a part chosen at random is defective?(c) If the chosen pa
SOLVED: Two different factories both produce certain automobile p…
Apr 10, 2022
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If the probability of a defective bolt is 0.1, find (a) the mean and (b) the standard deviation for the number of defective bolts in a total of 400 bolts. (a) Mean μ=πp=(400)(0.1)=40, i.e. we can expect 40 bolte to be defective. (b) Variance a^2=n p q=(400)(0.1)(0.9)=36 . Hence the standard deviution e=√(36)=6. | Numerade
If the probability of a defective bolt is 0.1, find (a) the mean and (b) th…
Oct 22, 2021
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