Suppose that the yield on a $1$ year t$-$strip is $1\mathrm{.}55\%$ and the yield on a $2$ year t$-$strip is $3\mathrm{.}90\%.$ The yield on a $1$ year, zero coupon corporate bond is $5\mathrm{.}80\%,$ and the yield on a $2$ year, zero coupon corporate bond is $10\mathrm{.}30\%.$

Use the information to answer the question. What is the cumulative probability of default for the corporate bond over the $2$ years?