Maria would like to invest in gold and is aware that the returns on such an investment can be quite volatile. Excel Template (Note: This template includes the problem statement as it appears in your textbook. The problem assigned to you here may have different values. When using this template, copy the problem statement from this screen for easy reference to the values you've been given here, and be sure to update any values that may have been pre-entered in the template based on the textbook version of the problem.) Boom Good OK Level Slump Probability 0.1 0.2 0.3 Return 28% 19% 7% 5% -6% 0.2 0.2 (a 1) (a2) Use the table of states, probabilities and returns above, to determine the standard deviation of the return on Maria's gold investment? (Round answer to 3 decimal places, eg. 0.076) Standard deviation