Statistics- What is the variance of the firm’s revenue distribution

| March 29, 2017

Question
a firm’s revenue distribution for the coming year is (in million dollars): 15% probability of 5, 25% prob.. of 10, 20% prob.. of 12, 30% prob.. of 14 and 10% prob.. of 20. IF F(.) is the cumulative distribution function of this random variable, what is the F(11) equal to? What is F(14)? What is the variance of the firm’s revenue distribution? Please include work.

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