Continued from question $2.$

The spread of the CDS is $2\%$ and the premium is paid quarterly. The default happens at the $5$th month. What should the accrued interest be$?$

Keep only the integer part please. If the market price of a zero coupon bond paying $100$ at t$=2$ is $88\mathrm{.}64.$ Give a good estimation of b$1.$

Round your answer to the fourth decimal place. If your answer is $0\mathrm{.}31311,$ submit $0\mathrm{.}3131.$

Note:

$$

$$

q

u

$$

and

$$

$$

q

d

$$

are both $0\mathrm{.}5$