If the risk-free rate is 3% and the market return is 7%, with standard deviation 10%, then a 50% investment in the marke

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If the risk-free rate is 3% and the market return is 7%, with
standard deviation 10%, then a 50% investment in the market and the
rest in the risk-free rate has the following mean and standard
deviation of return (respectively):
Question 19 options:
9% and 15%
5% and 5%
3.5% and 15%
3.5% and 5%