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Mathematics, 20.09.2020 17:01 kolin89

What are the big corporations doing with their wealth? One way to answer this question is to examine profits as percentage of assets. A random sample of 50 Fortune 500 companies gave the following information. Estimate the sample mean, sample variance, and sample standard deviation for profit as percentage of assets. (Round your answers to three decimal places.) Profit as percentage of assets 8.6-12.5 12.6-16.5 16.6-20.5 20.6-24.5 24.6-28.5 Number of companies 13 18 3 7 9

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