For each of the (r, b) pairs in 3.4.1, compute the threshold, that is, the value of s for which the.

For each of the (r, b) pairs in  3.4.1, compute the threshold, that is, the value of s for which the value of 1_(1_s r ) b is exactly 1/2. How does this value compare with the estimate of (1/b) 1/r that was suggested in Section 3.4.2?