STATS 7 Lecture Notes - Lecture 7: Frequentist Probability, Mutual Exclusivity, Conditional Probability
Document Summary
Random circumstance is one in which the outcome is unpredictable. Assigned to a possible outcome of a random circumstance to indicate the likelihood. Two methods for determining relative frequency probability. Over time, such as how often a flight is late. Over individuals, by measuring a representative sample from a larger population and observing the relative frequency of an outcome or category of interest. Make an assumption about the physical world. We assume all cards are equally likely to be drawn. Observe the relative frequency of an outcome over many repetitions. Measure a representative sample and observe the relative frequency of possible outcomes or categories for the sample. Two events are this if they do not contain any of the same outcomes. Two events are independent of each other if knowing that one will occur does not change the probability that the other occurs. Two events are dependent if knowing that one will occur changes the probability that the other occurs.
