1 This statement is based on this author’s experience as a cadet in the U.S. Army at West Point in the early 1970’s.
2 Adapted from http://en.wikipedia.org/wiki/Analytic_Hierarchy_Process, March 5, 2011.
3 Given a square matrix A, the scalar λ and non-zero vector v are said to be the eigenvalue and the eigenvector of A if Av = λv.
4 This bathtub curve is the sum of four Weibull curves f(t) = αβ−αtα−1 exp(−(t/β)α) with α = 0.5, 1, 3, and 10, β = 135, for t in the range (1,250).
5 The partial autocorrelation at lag k is the autocorrelation between xt and xt-k that is not accounted for by lags 1 through k – 1.
6 The figure above is different from the original because it puts high market share on the right rather than the left.
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