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Let X1,..., Xn be iid random variables with expected value 0, variance 1, and covariance Cov[Xi, Xj] = ρ. Use Theorem 5.13 to find the expected value and variance of the sum Y = X1 +···+ Xn.
Theorem 5.13
X is an n-dimensional random vector with expected value µ X, correlation RX, and covariance CX. The m-dimensional random vector Y = AX + b, where A is an m × n matrix and b is an m-dimensional vector, has expected value µY, correlation matrix RY, and covariance matrix CY given by
samples were collected from two ponds in the bahamas to compare salinity values in parts per thousand. several samples
Create an APA style table that presents descriptive statistics for the sample.
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With a mean of 696 grams and a standard deviation of 37 grams. If you pick one fruit at random, what is the probability that it will weigh between 573 grams and 619 grams.
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an article in the journal of the environmental engineering division distribution of toxic substances in rivers 1982
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What is the point estimate for the difference between the means of the two populations?
The mean number of hours of flying time for pilots at Continental Airlines is 49 hours per month (The Wall Street Journal, February 25, 2003).
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