[STA 13] - Final Exam Guide - Comprehensive Notes fot the exam (65 pages long!)
Document Summary
Statistics: methods used to learn about the world from data. Ex: mean, standard deviation, graphs(bar charts, histograms, scatter plots) Use value of statistics (from the sample) to estimate value of the parameter (in. Ex: mean, standard deviation, max value population) Example: want to estimate average age of students in stat 13c estimate. Statistic - average of 7 students = 19. This is referred to as a non-random sample. Every member of population has same chance of being in sample. For every member, the chance of being in the ample doesn"t depend on which other members are in the sample. If we have a srs of size m from a population with n number. M/n is probability of each member being in sample. A srs of size n people is selected in such a way that every possible sample of n people has some chance of being the sample chosen. (1,2); (1,3); (1,4); (1,5); (2,3); (2,4); (2,5); (3,4);
