# Activities

• • • ##### Subject Area

• Math: Statistics: Probability and Random Variables

• ##### Author 9-12

45 Minutes

• ##### Device
• TI-Nspire™
• TI-Nspire™ CAS
• TI-Nspire™ CX/CX II
• TI-Nspire™ CX CAS/CX II CAS
• TI-Nspire™ Navigator™
• TI-Nspire™ Apps for iPad®
• ##### Software

TI-Nspire™
TI-Nspire™ CAS

3.6

• ##### Report an Issue

Two-way Tables and Association

#### Activity Overview

This lesson involves analyzing the results of a survey using a two-way frequency table.

#### Objectives

• Students will be able to summarize data from a two-way frequency table.
• Students will be able to interpret conditional probabilities from a two-way table.
• Students will be able to interpret expected values from a simulation as an estimate of outcomes.
• Students will be able to interpret expected values as an indication of association.

#### Vocabulary

• association
• conditional probability table
• random sample
• survey
• two-way frequency table

#### About the Lesson

This lesson involves analyzing the results of a survey using a two-way frequency table.
As a result, students will:

• Interpret what the values mean in both the frequency table and conditional probability table.
• Use a graph of the relationship between two items from the survey to report conditional probabilities.
• Generate a simulated sampling distribution and interpret how likely a given outcome is expected to occur.