I had certain queries related to the following
1.Pearson's correlation with expected values
Consider sample data set
Probability Returns ( X) Returns (Y)
O.1 15 % 8%
0.2 - 10 % -5 %
0.3 10 % 7%
Concept: These on-line quiz questions are not specifically linked to learning objectives, but are instead based on recent sample questions. The difficulty level is a notch, or two notches, easier than bionicturtle.com's typical question such that the intended difficulty level is nearer to an...
I wrote to Meissner (I don't see an errata yet for his new book, which is excellent) that I think the example for (3.2.3) Kendall's tau is incorrect. He shows five (x,y) pairs. Five (X,Y) sets implies 10 pairs (of X,Y pairs). 10 is the "triangle number" for 4 = (n-5), see...