News
July 14, 2015
In this issue, we look at the consequences of having only incomplete data. For example, suppose a random variable $X$ has a normal distribution with mean $\mu $ and variance $\sigma ^2$, and both parameters need to be estimated. With usual data, which we call complete data, namely iid copies…
Bulletin Editor Anirban DasGupta writes:
Well done to Yixin Wang of Columbia University, who sent correct answers to all three parts (although fuller answers are encouraged).
The problem asked was to characterize the set of recurrence points of three $d$-dimensional random walks with step distributions $F$:
(a) $d = 1,…
In the last issue, we announced the latest additions to the prestigious list of IMS Fellows, now numbering 1,098. Paul Shaman delves deeper into the history of IMS Fellows, and reveals some interesting characters among them:
At its founding in 1935, the IMS constitution stipulated:
(Ann. Math. Statist.,…
Xiao-Li Meng gives some advice to a student in a conundrum.
After the final exam of my first Gen. Ed. course, Real-life Statistics: Your Chance for Happiness (or Misery), a student insisted on seeing me. Given the course title, I thought I would hear about his misery—likely about the…
