6. Calculating Beta. Following are several months' rates of return for Tumblehome Canoe Com- pany. Prepare a plot like Figure 12.1. What is Tumblehome's beta? (LO12-1) Month Market Return (%) 1 2 0 0 Tumblehome Return (%) +1 -1 -2.5 -0.5 +2 3 5 6 +1 +4 +2 7 8 9 10 N N t to -2 4