O 5277 10 pts DQuestion 4 Do bonds reduce the overall risk of an investment port

Question

O 5277 10 pts DQuestion 4 Do bonds reduce the overall risk of an investment portfolio? Let x be a random variable representing annual percent return for the Vanguard Total Stock Index (all Stocks). Let y be a random variable representing annual return for the Vanguard Balanced Index (60% stock and 40% bond). For the past several years, assume the following data. Compute sy2. 12 0 37 21 34 23 24 -12 12 21 7 5 27 15 22 17 15 5 6 -7 O 2062 O 2087 O 2136 O 2111 O 2075 Question 5 10 pts Compute the population standard deviation for the following sample data, assuming the sample comprises the entire population. Round your answer to the nearest hundredth.

Explanation / Answer

hence answer is 2136

x y y^2 12 7 49 0 -5 25 37 27 729 21 15 225 34 22 484 23 17 289 24 15 225 -12 -5 25 -12 -6 36 -21 -7 49 Total 2136

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