Claire should invest. This is because she would earn a profit of $300.
The number of years it would take to recover the amount invested is 4 years.
The decision to invest or not can be determined by calculating the expected value of the investment. The expected value is the expected profit multiplied by the probabilities.
Expected value = (0.2 x $-10,000) + ( 0.4 x 0) + (0.3 x 5000) + (0.1 x 8000)
-2000 + 1500 + 800 = 300
Years it would take to recover the initial investment = 1200 / 300 = 4 years
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