In this math video lesson we will learn about probability models. We will define probability models as a mathematical description listing all possible outcomes of an event and their corresponding probabilities. We will understand that a probability model could list the probabilities as fractions, decimals or percents. We will create a probability model by finding the probable outcomes for each event. Student practice is embedded in the lesson with modeled exemplar solutions.
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00:00 Introduction
00:08 Lesson Objectives
00:21 Essential Question
00:31 Definition of a Probability Model
00:52 Fractions, Decimals, & Percents - Probability Model
01:38 How to Create a Probability Model
03:14 Student Practice #1
03:59 Solution - Student Practice #1
06:15 Student Practice #2
07:07 Solution - Student Practice #2
Probability
Investigate chance processes and develop, use, and evaluate probability models.
7.SP.C.7 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.
7.SP.C.7.a Develop a uniform probability model by assigning equal probability to all outcomes, and use the model to determine probabilities of events. For example, if a student is selected at random from a class, find the probability that Jane will be selected and the probability that a girl will be selected.
7.SP.C.7.b Develop a probability 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.