What is the expected risk premium for the security? There are three states of the economy. The boom state has an associated probability of 0.2 . The normal state of the economy has an associated probability of 0.4 . The bust state of the economy has as as ated probability of 0.4 . The rate of return in the boom state of the economy is 15%. The rate of return in the normal state of the economy is 8%. The rate of return in the bust state of the economy is 6%. The risk-free rate is 3.5%. 5.1% 8.6% 29% There isn't enough information to determine