7th Grade MAT Targeted Standards Domain (SP) Statistics and Probability Cluster: Investigate chance processes and develop, use, and evaluate probability models

Develop a probability model and use it to find probabilities of events. Compare probabilities from a model to observed frequencies; if the agreement is not good, explain possible sources of the discrepancy.

MAT-07.SP.07.b Develop a possibly model (which may not be uniform) by observing frequencies in data generated from a chance process.

For example, find the approximate probability that a spinning penny will land heads up or that a tossed paper cup will land open-end down. Do the outcomes for the spinning penny appear to be equally likely based on the observed frequencies?