# Month: January 2020

## Dr. J’s Guide to Set Operations

Dr. J introduces set operations including union, intersection, set difference and set complement. The union of two sets contains all the elements in either set. The intersection of two sets contains the elements that are in both sets. The set difference of A minus B contains all the elements in A that are not in …

## Dr. J’s Guide to Subsets & Set Comparisons

Dr. J introduces the idea of a subset and set comparisons. Set A is a subset of set B if the elements of A are all in the set B. The set A is a proper subset of B if there is at least one element in B that is not in A. Thus subset …

## Dr. J’s Guide to Sets

Probability is a function of a set. Therefore, before we can discuss probability, we need to introduce the mathematical concept of a set. Fundamentally, a set is a collection of things or objects. This video introduces the mathematical notation we use the describe sets as well as a number of sets that are commonly used …