1/11/16
Introduction: What is statistics?
o The science of analyzing data.
What is Data?
o Information about an individual (entity that you are studying)
o e.g. of individual: People, places, countries, firms
Variable: a characteristics of an individua

1/13/2015 Notes (Ask teacher about the text book)
Review of last class:
What is statistics?
Talked about the different kinds of variables (Quan vs Qual)
How to present the data in graphs
Displaying Qualitative Information on Graphs:
Bar Graphs vs. Pie Gr

Notes 1/25/15
Mean
The mean or arithmetic average
o To calculate, the average, r mean, add all values, then divide by the number of
individuals. It is the center of the mass
Median:
The median is the midpoint of a distribution- the number such that half

Contents
Chapter 1
Statistics, Data, and Statistical Thinking
1
Chapter 2
Methods for Describing Sets of Data
10
Chapter 3
Probability
98
Chapter 4
Random Variables and Probability Distributions
149
Chapter 5
Sampling Distributions
257
Chapter 6
Inference