The return on the Tarheel Corportation stock is expected to be 14 percent with a standard deviation of 8 percent. The beta of Tarheel is .8. The risk-free rate is 7 percent, and the expected return on the market portfolio is 15 percent.

What is the probability that an investor in Tarheel will earn a rate of return less than the required rate of return?

Assume that the returns are normally distributed