Law of large numbers

Definition:

The mean of a random sample approaches the mean (expected value) of the population as sample size increases.

Investing Essentials


Copyright © 2011 Campbell R. Harvey, Professor of Finance, Fuqua School of Business at Duke University

Term of the Day

Gross profit margin

Gross profit divided by sales, which is equal to each sales dollar left over after paying for the cost of goods sold.

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