Mathematics, 06.10.2019 04:00 mayslays
Suppose that you read through this year's issues of the new york times and record each number that appears in a news article—the income of a ceo, the number of cases of wine produced by a winery, the total charitable contribution of a politician during the previous tax year, the age of a celebrity, and so on. now focus on the leading digit of each number, which could be 1, 2, , 8, or 9. your first thought might be that the leading digit x of a randomly selected number would be equally likely to be one of the nine possibilities (a discrete uniform distribution). however, much empirical evidence as well as some theoretical arguments suggest an alternative probability distribution called benford's law, given below. p(x) = p(1st digit is x) = log10 x + 1 x x = 1, 2, , 9 (a) without computing individual probabilities from this formula, show that it specifies a legitimate pmf.
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