The probability tree diagram shown below describes the uncertain cash flows for an engineering project. The analysis period is two years, and MARR-15% per year. There are 9 possible combination of probabilities j for this project. Calculate the PW for the j-7. (HINT: omit comma and $ symbols). Time Period 0 17,500 0.1 0.2 0.7 6,000 19,000 $23,000 0.2 $20,000 0.2 0.5 0.3 -$29,000 $12,000 0.6 24,600 $28,000 0.2 $22,400 0.3 0.4 0.3 $19,000 $27,500 31,000