This week I  learned about Probabilities. There are three approaches which are Priori Approach, Posteriori Approach, and Subjective Approach. Priori Approach is theoretical and you calculate the results without doing an experiment, while Posteriori Approach is experimental. For Subjective Approach it is based on the researcher's knowledge, information, experience, etc. There are also Mutually exclusive events also called disjoint, where two events cannot happen at the same time. There are also  Non-mutually exclusive events where two events have at least one common outcome between them. There is also the Conditional Probability which is the probability of an event happening when one event already has happened. The sample space in Conditional Probability has limited sample space. I believe that the lessons are quite simple if understood properly. There are times where the problem given can be a bit confusing but with just a bit of understanding and analyzing I can manage to understand what the problem is asking for.