The table below shows the historical rates of return (including dividends) for two stocks:

Year	Stock A	Stock B
2021	3%	-3%
2020	12%	16%
2019	8%	20%
2018	4%	-12%

Stock A makes up 60% of the value of portfolio, and stock B makes up the rest. Calculate the portfolio return for each year.

Attempt 1/10 for 10 pts.

Part 1

What was the portfolio return in 2021?

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Part 2

What was the portfolio return in 2020?

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Part 3

What was the average annual portfolio return over all years?

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Part 4

What was the annual standard deviation of portfolio returns?

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