Diameter of rugs are normally distributed
Assume the diameter of rugs are normally distributed with a mean of 4.00 feet and a standard deviation of 0.38 feet. What is the probability of sampleing a set of 40 rugs and finding their mean to be more than 4.10 feet in diameter?
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Supposing a binomial distribution, determine the probability that none in a random sample of four calculators is defective?
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