Example 7.12: Calculate and plot a running average

September 17, 2009
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(This article was first published on SAS and R, and kindly contributed to R-bloggers)

The Law of Large Numbers concerns the stability of the mean, as sample sizes increase. This is an important topic in mathematical statistics. The convergence (or lack thereof, for certain distributions) can easily be visualized in SAS and R (see also Horton, Qian and Brown, 2004).Assume that X1, X2, ..., Xn are independent and identically distributed realizations from some distribution with

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