Which is the best investment company to invest in: Investment Company A Possible Return 55 pesos 45 pesos Probability 0.5 0.5 Investment Company B Possible Return 60 pesos 40 pesos Probability 0.5 0.5 Investment Company C Possible Return 0 pesos 50 pesos 100 pesos Probability 0.3 0.4 0.3 Using the concept of variance of discrete random variables, which of three best options has the best deal? Explain your answer.

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