Agenda

  1. Number talk: Estimation Duels — what will the period be?
  2. From your own data to an equation: amplitude, axis, period, phase, in that order
  3. Test against a point you did NOT use to build the model
  4. The extrapolation argument: how far ahead would you trust it, and what in the situation sets the limit?

Things to do before our next class

  • Equation fitted and tested; one prediction made.