Feb 16
asides
data visualizations & political polling
homework
I have not yet finished grading your work - I'll try to have it by Thursday.
But I have created a "solutions" page that shows my take on these problems,
which I've put into a
solutions folder.
context
Talk about where we are and where we're going:
- have looked at data & visualizing it
- now onto theory (math models for guessing what to expect)
- before heading into statistical tests (rules for drawing a conclusion from data based on a model)
probability - chapter 2
Start discussing the material in the second chapter.
For each of these, we want to have (a) a formal definition, (b) an intuition, and (c) examples.
- a random variables x : theory & practice (dice, playing card, lottery ...)
- a probability distribution P(x)
- P(A or B) = P(A) + P(B) , if A,B are "disjoint" .
- P(A and B) = P(A) * P(B) , if A,B are "independent" .
Look at examples and counterexamples.
Roll some dice for some hands-on practice.
