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Let x denote the profit that a man makes in a business.He may earn ₹2800 with probability 0.5,he may lose ₹5500 with probability 0.3.He may neither earn nor lose with probability 0.2.Calculate the mathematical expectation of x.

Answer» Let x denote the profit that a man makes in a business.He may earn ₹2800 with probability 0.5,he may lose ₹5500 with probability 0.3.He may neither earn nor lose with probability 0.2.Calculate the mathematical expectation of x.


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