Non-Calculus Statistics I
Fall 2016
Lecture Note 3
By Haile Gessesse
October 4, 2016
4.1 Probability
how do statisticians think?
They reject explanations based on very low
probabilities.
Rare Event Rule for Inferential Statistics
If, under a given assumpt

Non-Calculus Statistics I
Fall 2016
Lecture Note 4
By Haile Gessesse
October 10, 2016
5.1 Discrete Probability Distribution
In Chapter 2 we constructed frequency tables
and histograms using observed sample values
that were actually collected, but in this

Non-Calculus Statistics I
Fall 2016
Lecture Note 1
By Haile Gessesse
September 19, 2016
1.1 Overview
What is Statistics?
Statistics is the science of planning studies
and experiments, obtaining data, and then organizing, summarizing, presenting, analyzing