Statistical Sciences 2244A/B- Final Exam Guide - Comprehensive Notes for the exam ( 23 pages long!)

• School: Western University
• Department: Statistical Sciences
• Course: Statistical Sciences 2244A/B
• Professor: Jennifer Waugh

Document Summary

S t a t i s t i c a l s c i e n c e s 2 2 4 4 a / b. Descriptive statistics: descriptive statistics is organization, summarization and presentation of data. Inferential statistics is generalization from samples to populations, estimation, hypothesis testing and prediction making based on our sample: ordinal data must have a universal ordering system. Random variables: a random variable is a variable which has a numerical outcome of a random phenomenon, outcome must be a numerical value. Continuous rv and normal distributions: density curves describe a continuous (probability) distribution, with area of 1. 0 and. Sampling distributions: the discipline of statistics is conducting studies to collect, summarize, analyze and draw conclusions from data, descriptive statistics is the organization, summarization and presentation of data. If you sample in a representative way, it is predictable. If they are srs then we know what the mean of this sampling distribution of sample means is.