Consider an urn model where at each step one of q colors is sampled according to some probability distribution and a ball of that color is placed in an urn. The distribution of assigning balls to urns ...

Forbes contributors publish independent expert analyses and insights. I help people communicate data clearly with graphs. In “When Should I Use Logarithmic Scales in My Charts and Graphs”, I showed ...

(1) MR. Pressland adopts the heuristic method in this course of experimental geometry for beginners. The first exercises only require the use of a pencil and a graduated straight edge cut from ruled ...