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Discrete Probability Distributions 22. An investor estimates that there is a 1 in 10 chance that a stock purchase will lose 20% of its value, a 2 in 10 chance that it will break even, a 3 in 10 chance that it will gain 15%, and a 4 in 10 chance that it will gain 30%. What is the expected return as a percentage based on these estimates? 9