hw4q - of each other with = 65 . 90 and = 0 . 32. (a) what...

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(2.6.14, and 2.6.15 are not in old edition of textbook) 2.6.14 The random variable X has an expectation of 77 and a standard deviation of 9. Find the values of a and b such that the random variable Y = a + bX has an expectation of 1000 and a standard deviation of 10. 2.6.15 Suppose that components are manufactured such that their heights are independent
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Unformatted text preview: of each other with = 65 . 90 and = 0 . 32. (a) what are the mean and the standard deviation of the average height of ve components? (b) if eight components are stacked on top of each other, what are the mean and the standard deviation of the total height? 1...
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This note was uploaded on 04/16/2010 for the course STAT 427 taught by Professor Staff during the Spring '08 term at Ohio State.

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