...or more likely, I'm just being retarded. So here's the offending statement:(adsbygoogle = window.adsbygoogle || []).push({});

Let X be our random variable with a countable range of {x_1, x_2, .... , x_n, ...}. Let f(x) be a discrete density function and F(x) the corresponding cumulative distribution function. Then,

f(x_j) = F(x_j) - lim_(0<h→0){F[ (x_j) - h ]}.

I expected the text to say,

f(x) = F(x_j) - F[ x_j - x_(j-1) ]

Keep in mind this is a respected stats text, i.e., Mood's Introduction to the Theory of Statistics. What the heck is going on. So confused.

p.s. sorry if my formatting is horrible. I'm not entirely sure yet how best to exhibit math in asii code. (I just joined).

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# Stats text error?

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