$8)$ Andre is considering an investment in Bristol Inc. and has gathered the following information. What is the expected standard deviation for a share of the firm's stock?

State of the Economy Probability of the

State Conditional Expected Return

Bristol Inc.

Recession $\mathrm{.}20-10\%$

Steady $\mathrm{.}5010\%$

Boom $\mathrm{.}3045\%$

$8)\_\_\_\_\_\_\_$

A$)20\mathrm{.}13\%$ B$)122\mathrm{.}63\%$ C$)5\mathrm{.}14\%$ D$)17\mathrm{.}48\%$