statistics
posted by Karen .
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 .
x: 14 0 36 23 33 25 26 14 14 23
y: 6 5 26 17 24 17 17 5 6 6
4607
4803
5332
4243
4940
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