D. the benefits that result from the activity exceed the costs
A cover letter is the professional communication .
It can be deduced that the expected rates of return of stocks A and B are 13.2% and 7.7% respectively.
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How to calculate the expected
rates of return</h3>
E(RA) = 0.1 (10%) + 0.2 (13%) + 0.2 (12%) + 0.3 (14%) + 0.2 (15%)= 13.2%
E(RB) = 0.1 (8%) + 0.2 (7%) + 0.2 (6%) + 0.3 (9%) + 0.2 (8%)= 7.7%
Therefore, the expected rates of return of stocks A and B are 13.2% and 7.7% respectively.
The standard deviation will be calculated thus:
Var(RA) = [0.1 (10%-13.2%)² + 0.2 (13%-13.2%)² + 0.2 (12%-13.2%)² + 0.3 (14%-13.2%)² + 0.2 (15%-13.2%)2 ] 1/2
= 1.5%
Var(RB) = [0.1 (8%-7.7%)² + 0.2 (7%-7.7%)² + 0.2 (6%-7.7%)² + 0.3(9%-7.7%)² + 0.2 (8%-7.7%)² ] 1/2
= 1.1%
Therefore, the standard deviation of stocks A and B are 1.5% and 1.1% respectively.
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The best thing that Marla should do in this type of problem is letter d, investigate the market. It is because in doing business especially to the field that she is going to take on, it is best to assess and evaluate the decision and the outcome of it. It is best to make sure if she could benefit from it and could be a potential as she runs the business.
