Paulie invested $20,000 in ABC Corp. and $60,000 in DEF Corp. the return percentages of ABC Corp. and DEF Corp. will vary as shown in the information below: State of Economy Probability of ABC State Return DEF Return Boom 20% 12% 10% Good 30% 10% 9% Poor 30% 6% 6% Bust 20% -10% 6% What is the standard deviation of Paulie's investment? 7.80% O 7.34% O 7.48% O 7.08% Paulie invested $20,000 in ABC Corp. and $60,000 in DEF Corp. the return percentages of ABC Corp. and DEF Corp. will vary as shown in the information below: State of Economy Probability of ABC State Return DEF Return Boom 20% 12% 10% Good 30% 10% 9% Poor 30% 6% 6% Bust 20% -10% 6% What is the standard deviation of Paulie's investment? 7.80% O 7.34% O 7.48% O 7.08%