Question

A consultant has three sources of income-from teaching short courses, from selling computer software, and from advising on projects. His expected annual incomes from these sources are $20,000, $25,000, and $15,000, and the respective standard deviations are $2,000, $5,000, and $4,000. Assuming independence, find the mean and standard deviation of his total annual income.


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  • CreatedJuly 07, 2015
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