Tau(q) exercise solutions

For these values: r = 0.5, p₁ = 0.05, p₂ = 0.2, p₃ = 0.3, and p₄ = 0.45, here are some points on the tau(q) curve.

q tau(q)

-2 8.78

-1 4.93

0 2

1 0

2 -1.58

5 -5.56