Please Calculate Variance... and then calculate Standard Deviation... Please show all necessary work for computations..

One of these answers is Correct for Variance... "0.0206", "0.6206", "-0.7794", "1.2206", "2.3206"

One of these answers is correct for Standard Deviation... "14.35%", "16.55%", "12.05%", "11.05%", "18.75%"

Consider the following information: State of Economy Boom Good Poor Bust Probability of State of Economy .15 .55 .25 .05 Rate of Return if State Occurs Stock A A Stock B Stock C .33 .43 .23 .18 .14 .12 -.05 -.08 -.06 -.13 -.18 -.10 Your portfolio is invested 26 percent each in A and C, and 48 percent in B