1. MATH104 Chapter 12 Statistics 12.1 Intro

2. 12.1 Sampling, Frequency Distributions, and Graphs Terms: · Descriptive statistics · Inferential statistics · Population and sample · Random sampling · Types of sampling systematic cluster stratified · Variables quantitative qualitative

3. Ex 1-- Qualitative Ex 1: Class example- frequency distribution and a bar graph

4. Ex 2-- Quantitative Class example- frequency distribution and a histogram

5. Ex 3: Summarize the following data 73 58 68 75 94 79 96 79 87 83 89 52 99 97 89 59 95 77 75 81 75 73 73 62 69 76 77 71 50 57 41 98 77 71 69 90 75 Construct a stem and leaf diagram

6. Construct a grouped frequency distribution 73 58 68 75 94 79 96 79 87 83 89 52 99 97 89 59 95 77 75 81 75 73 73 62 69 76 77 71 50 57 41 98 77 71 69 90 75

7. Comment on Distortions of Data