Ben would like to invest in gold and is aware that the returns on such an investment can be quite volatile. Use the following table of states, probabilities, and returns and determine

Probability Return: Boom 0.1 30% Good 0.2 17% Ok 0.3 7% Level 0.2 4% Slump 0.2 -19%

What is the expected return on Bens gold investment? (Round answer to 3 decimal places, e.g. 0.076.)

Expected return ?

What is the standard deviation of the return on Bens gold investment? (Round intermediate calculations and answer to 5 decimal places, e.g. 0.07680.)

Standard deviation ?