TJ, J00, yeS) 10-20 A robot has just been installed at a cost of $81,000. It will have no salvage value at the end of its useful life. Given the following estimates and probabilities for the yearly savings and useful life, determine the expected rate of return. Useful Savings per year Probability Life (years) Probability 1/6 2/3 1/6 12 0.2 $18,000 20,000 22.000 5 0.7 4 0.1