STAT 100 Lecture Notes - Lecture 14: Blood Transfusion, Sample Space, Sampling Distribution

• School: Simon Fraser University
• Department: Statistics
• Course: STAT 100
• Professor: Gamage Perera

Document Summary

Chapter 17: chance behaviour in the real world. Note that we can"t base this answer on the long-term pattern in many repetitions. Instead, we base the answer on our personal judgment. A personal probability is a number between 0 and 1 that expresses someone"s personal judgment about how likely an outcome is. Often important decisions are based on a personal probability as opposed to a long-term proportion. All these are situations where the outcome of interest comes from a one-time event, not from repeatable trials. A probability model presents a probability distribution for some random phenomenon. It gives (1) the possible outcomes of the random phenomenon, and for each outcome, (2) the probability of that outcome occurring. Often probability models are used to approximate real-world data processes. An outcome is the result of some random phenomenon or experiment. The sample space is the listing of all the possible outcomes of a random experiment.