Wanda’s Reviews > Probability: For the Enthusiastic Beginner > Status Update

Excellent analogies help to solidify the methods of counting. I really appreciate how the author gives sketches to relate these different problems (e.g. how one can find the ways to choose n of N elements (i.e. without replacement, order doesn’t matter) by determining how to pick n of N elements (i.e. without replacement, order matters) by dividing the latter by the number of ways one can permute n elements)