yield of 2.98% these bonds? in mid-2009, Ralston Purina had AA-rated, six-year bonds outstanding with a yield to maturity of 3.98% At the time, similar maturity Treasures had a a. If Ralston Purina's bonds were risk-free, what is your estimate of the expected return for b. If you believe Ralston Purina's bonds have 1.1% chance of default per year and that expected loss rate in the event of default is 35%, what is your estimate of the expected return for these bonds? a. If Ralston Purina's bonds were risk-free, what is your estimate of the expected return for these bonds? The estimate of the expected return for these bonds is % (Round to two decimal places) c. If you believe Ralston Purina's bonds have 1.4% chance of detault per year, and that expected loss rate in the event of default is 35%, what is your estimate of the expected return for these bonds The estimated expected return for these bonds will be % (Round to two decimal places)