Mathematics, 24.10.2019 04:50 briizy

Aconsultant 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 $7,000, $22,000, and $50,000, and the respective standard deviations are $3,000, $4,000, and $18,000. assuming independence, find the mean and standard deviation of his total annual income.

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Aconsultant has three sources of income—from teaching short courses, from selling computer software,...