Top network posts

• 14 Why is $x + x = 2x$, but $X + X \neq 2X$?
• 13 What areas of mathematical statistics are highly employable?
• 12 The sum of independent lognormal random variables appears lognormal?
• 8 You randomly select two distinct integers between 1 and 100. What is the probability that the larger number is exactly twice the smaller number?
• 7 Maximum Likelihood estimation with a "dependent parameter"?
• 6 With two restrictions on the parameters, how does an AR(p) process change as we increase p
• 6 Unsure if this derivation for covariance function is valid?
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