Day 40: Heart of Mathematics

Last time: We almost finished up chapter 6 (risky business) - we were left with one challenge. We discussed the birthday problem, the calculation of probabilities, events and their complements, etc.
Today:
- Assignments:
  - Project Assignment: Time to hand in those preliminary drafts of papers....
  - Any more assignment fives (today's the last chance!)
  - Posters are available!
- The red side and the blue side (II.5 from last time).
- Fact: the Average American has one testicle and one ovary!
- Sneaky sampling to get at honest answers to embarrassing questions
  - I.15
  - I.16
  - I.17
- Other problems for the section (most likely for next time):
  - II.2
  - II.5
  - II.10
  - III.1.
Next time: sample bias, dirty data, and other dangers...

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