ECON221 Chapter Notes - Chapter 1-2,5: Simple Random Sample, Pie Chart, Cumulative Frequency Analysis
9 May 2017
School
Department
Course
Professor
Document Summary
Chapter 5: normal curve: assumes the data follows the empirical distribution when standardized, the z table of able to determine area under the curve (percentiles) based on the z scores of the given range, summarizing standardization:- 1: adding the same number to every entry on a list adds that constant to the average but the sd doesn"t change. 2: multiplying every entry on a list by the same positive number multiples the average and the sd by that constant. 3: changes of scale don"t change standard units.
