Mathematics, 12.04.2021 23:20 kamarionnatillman13
In a given population of two-earning male-female couples, male earnings have a mean of 50,000 USD per year and a standard deviation of 15,000 USD. Female earnings 48,000 USD per year and a standard deviation of 13,000 USD. The correlation between male and female earnings for a couple is 0.90, Let C be be the combined earnings for a randomly selected couple • What is the mean of C
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