3A Construct sample space for simple events.

3B Recognize the relation between relative proportions of possible outcomes and their likelihood.

3C Quantify probability as the ratio of the number of target outcomes to all possible outcomes (or as the ratio of areas representing these outcomes).

3D Compute expected frequency based on probability and sample size.

3E Recognize that the probability of an outcome is the same every time the event is repeated.

5 Investigating Chance