[solution] » (b) Use the results of part (a) to compute the sample mean, variance, and standard deviation for
(b) Use the results of part (a) to compute the sample mean, variance, and standard deviation for x and for y. (Round your answers to two decimal places.)
Here was the first part of that question with your solution:Do bonds reduce the overall risk of an investment portfolio? Let x be a random variable representing annual percent return for Vanguard Total Stock Index (all stocks). Let y be a random variable representing annual return for Vanguard Balanced Index (60% stock and 40% bond). For the past several years, we have the following data.
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This question was answered on: Oct 14, 2020
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