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 ...

(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 ...

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 ...