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Lesson Plan

Calculate conditional probabilities for bivariate categorical data by using two-way tables

teaches Common Core State Standards CCSS.Math.Practice.MP2 http://corestandards.org/Math/Practice/MP2
teaches Common Core State Standards CCSS.Math.Practice.MP8 http://corestandards.org/Math/Practice/MP8
teaches Common Core State Standards CCSS.Math.Content.HSS-ID.B.5 http://corestandards.org/Math/Content/HSS/ID/B/5
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Big Ideas: Two-way tables provide a very useful way to organize and analyze bivariate categorical data Conditional probability is the probability that an outcome will satisfy a certain level of a categorical variable, assuming that it already satisfies a certain level of a second categorical variable. This lesson builds on students’ work in early high school statistics with two-way tables for bivariate categorical data and joint/marginal probabilities. The task will ask students to complete a two-way frequency table by sorting milk chocolate and peanut candies by color. Students will then be asked to perform categorical probability calculations based on candy type and candy color. Vocabulary: Categorical Bivariate Frequency Conditional Probability Special Materials: - 6 cups (clear is preferable) per group - 1 regular serving size bag of candy-coated milk chocolates for each group - 1 regular serving size bag of candy-coated chocolates with peanuts for each group OR - 1 bag per group of candy-coated milk chocolates manipulatives cut and assembled in a baggie - 1 bag per group of candy-coated milk chocolates with peanuts manipulatives cut and assembled in a baggie (use standard cut-outs on colored paper to differentiate)
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