Following Table 27.10, compute the prices of first, second, and Nth-to-default bonds assuming that defaults are uncorrelated

Question:

Following Table 27.10, compute the prices of first, second, and Nth-to-default bonds assuming that defaults are uncorrelated and that there are 5, 10, 20, and 50 bonds in the portfolio. How are the Nth-to-default yields affected by the size of the portfolio?