Dave's Web Corner

MTH-208 Week 1 (January 8-14)

recommended:
- Chapter 1 Practice (p. 41): 1-5
- Chapter 1 Homework (p. 46): 1-12
descriptive and inferential statistics
theoretical and experimental probability
population and sample
parameter and statistics
variable and data
proportion and mean

recommended:
- Chapter 1 Practice (pp. 41-44): 6-38
- Chapter 1 Homework (pp. 46-49): 13-39
qualitative (or categorical) data and quantitative data
- quantitative discrete data and quantitative continuous data
graphical representation of categorical data
- pie charts, bar charts, Pareto charts
sampling techniques
- random sampling
  - simple random sample
  - stratified sample
  - cluster sample
  - systematic sample
- non-representative sampling
  - convenience sampling
- with and without replacement
sampling and nonsampling errors, sampling bias, and the need to critically evaluate statistical studies
sampling bias
variation in data and variation in samples

recommended:
- Chapter 1 Practice (p. 45): 39-40
- Chapter 1 Homework (pp. 49-51): 40-46
levels of measurement
- nominal, ordinal, interval, ratio
frequency, relative frequency, and cumulative relative frequency
grouped data

recommended:
- Chapter 1 Practice (p. 45): 41-42
- Chapter 1 Homework (pp. 52-53): 47-51
experiments
- explanatory and response variables
- lurking and confounding variables
- "correlation is not causation"
- treatments, random assignment, placebo
- placebos, control groups, blind and double-blind studies
ethical considerations, institutional review boards
expectations of human participants
- risk mitigation, informed consent, privacy

recommended:
- Chapter 2 Practice (pp. 107-108): 1, 2, 3-11
- Chapter 2 Homework (p. 116): 1-2
stem-and-leaf graphs and side-by-side stem-and-leaf graphs - quick ways to represent, or compare, relatively small data sets
outliers (extreme value) - a value significantly different than the rest of the data
line graphs - using line segments to connect points consisting of data values and their frequencies
bar graphs - using the heights of bars to represent the frequencies or relative frequencies of categorical data

Calendar of all assessments and deadlines (XYZ and written homework, exams)
Homework
- XYZ Homework
  - Completed at https://www.xyzhomework.com
- Written Homework
  - Submitted Mondays and Wednesdays by 11:59pm as a single PDF file to our MTH-208W Assignments folder.
Exams
- Exam 1: in class Wednesday, February 15
  - Exam 1 (solutions)
  - Exam 1 covers chapters 1-4
Schedule
- Week 1
  - Written Homework 1, due Wednesday, January 11
    - Problems 1, 2
  - XYZ Homework Sections 1.1-1.4, due Saturday, January 14
- Week 2
  - Written Homework 2, due Wednesday, January 18
    - Problems 3, 4
  - XYZ Homework Sections 2.1-2.4, due Saturday, January 21
- Week 3
  - Written Homework 3, due Monday, January 23
    - Problems 5, 6
  - Written Homework 4, due Wednesday, January 25
    - Problem 7
  - XYZ Homework Sections 2.5-2.7, due Saturday, January 28