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The yield, in tons of ore per day, at a given coal mine is approximately normally distributed with mean 785 tons and standard deviation 60.
Find the probability that at least 800 tons of ore will be mined on a given day. Find the proportion of working days in which anywhere from 750 to 850 tons is mined. Find the probability that on a given day, the yield will be below 665 tons.
a simple random sample of 102 engineering students was taken from a population of 750 engineering majors. it was found
In the general population, one woman in ten will develop breast cancer. Research has shown that 1 woman in 600 carries a mutation of the BRCA gene. Seven out of 10 women with this mutation develop breast cancer. a) Find the probability that a ran..
a random variable x has a probability density function fx 2x for 0 lt x lt 1.find the difference between 10th
Given the longevity of the vendor's bulbs and the test the potential customer will be carrying out, what is the probability that the vendor will get the contract?
Present descriptive statistics (appropriate for the type of variable) in writing for each variable that you include in the test, by group if there is a grouping variable
What is the probability that none of the lines experiences a surface finish problem in 40 hours of operation. What is the probability that all three lines experience a surface finish problem between 20 and 40 hours of operation.
What is the Bonferroni procedure? How does it differ from the LSD procedure? Is it easier or harder to reject the null hypothesis with the Bonferroni procedure than with the LSD procedure?
Construct a histogram using the data. Identify the modal interval of the grouped data. Tracking risk (also called tracking error) is the standard deviation of the deviation of a portfolio's gross-of-fees total returns from benchmark return. Calcul..
how does our worldview shape and filter our concepts thoughts beliefs and actions dealing with our relationships and
What are the expected value and variance of the following probability distribution?
A company makes water pumps. The probability that a randomly selected pump is defective is equal to p. What is the probability that a sample of M pumps will contain exactly 3 defective items? Use Binomial distribution and Poisson distribution. Com..
Vehicles heading west on Front Street may turn right, left, or go straight ahead at Elm Street. The city traffic engineer believes that half of the vehicles will continue straight through the intersection.
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