For each statement, identify the appropriateness of the behavior when it comes to preparation.

A student supports opinions with evidence and research.

A student uses opinions, rather than evidence, to support a point about a topic.

A student uses notes to participate in a discussion.

A student fails to conduct research prior to a discussion.

Consider the following information on stocks a, b, c and their returns (in decimals) in each state: state prob. of state a b c boom 20% 0.27 0.22 0.16 good 45% 0.16 0.09 0.07 poor 25% 0.03 0 0.03 bust 10% -0.08 -0.04 -0.02 if your portfolio is invested 25% in a, 40% in b, and 35% in c, what is the standard deviation of the portfolio in percent? answer to two decimals, carry intermediate calcs. to at least four decimals.