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Mathematics, 12.07.2019 04:20 itscheesycheedar
You’re working with two random variables x and y , which may be dependent and for which v (x) = v (y ). show that the random variables w = (x+y ) and z = (x−y ) are uncorrelated. hint: nothing fancy — just simplify the covariance of w and z, using properties of covariance.
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Asample of 200 rom computer chips was selected on each of 30 consecutive days, and the number of nonconforming chips on each day was as follows: the data has been given so that it can be copied into r as a vector. non.conforming = c(10, 15, 21, 19, 34, 16, 5, 24, 8, 21, 32, 14, 14, 19, 18, 20, 12, 23, 10, 19, 20, 18, 13, 26, 33, 14, 12, 21, 12, 27) #construct a p chart by using the following code. you will need to enter your values for pbar, lcl and ucl. pbar = lcl = ucl = plot(non.conforming/200, ylim = c(0,.5)) abline(h = pbar, lty = 2) abline(h = lcl, lty = 3) abline(h = ucl, lty = 3)
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You’re working with two random variables x and y , which may be dependent and for which v (x) = v (y...
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