Student Puzzle Corner
Student Puzzle Editor Anirban DasGupta returns to consideration of statistical problems in this issue. The problem falls in the class of irregular problems. He says, “Certainly all of you have seen inference problems about uniform distributions with one or more unknown endpoints. That is one of the simplest irregular inference …
Guest puzzler Stanislav Volkov, Centre for Mathematical Sciences at Lund University, sets a puzzle about a speeding random walk:
For n = 1, 2, … let Xn = ±n with equal probabilities and assume that Xns are independent. Define a “speeding” random walk by S0 = 0 and Sn =…
Anirban DasGupta poses a statistical puzzle, looking at an easily understood Bayes problem that appears paradoxical at first glance, and it is hard to find a non-mathematical purely intuitive explanation for it. All PhD students in statistics most likely have seen parts of this specific problem in a standard course.…
Anirban DasGupta posed a problem that was a blend of calculus and probability, in the October/November issue. There’s still (just!) time to send your solution. The puzzle is here.…
Anirban DasGupta describes this problem as a blend of calculus and probability:
All of you know that for any given positive number α, α1/n → 1 as n → ∞. How large an n does it take to get very close to 1 if we choose α randomly? Here is…