Activities

• • • Subject Area

• Math: Statistics: Inferential Statistics
• Math: Statistics: Probability and Random Variables

• Author 9-12

60 Minutes

• Device
• TI-83 Plus Family
• TI-84 Plus
• TI-84 Plus Silver Edition
• Other Materials
This is Activity 9 from the EXPLORATIONS Book:
Activities for Algebra with the TI-83 Plus.

You're Probably Right, It's Wrong - TI-83

Activity Overview

In this activity, students perform a simulation to guess answers on a test and determine the experimental probability of passing the test. They then compare it with the theoretical probability.

Before the Activity

• Set up the calculator as explained in the attached PDF file
• See the attached PDF file for detailed instructions for this activity
• Print pages 111 - 119 from the attached PDF file for your class
• During the Activity

Distribute the pages to your class.

• List the correct answer for each multiple choice question
• Generate a list of random numbers between 1 and 4
• Compare the two lists
• Find the number of correct answers in the simulation
• Use this data to plot a histogram, and find the mean, mode, and median for the number of correct answers
• Compare the experimental and theoretical probabilities for the data
• After the Activity

Students will complete the Data Collection and Analysis page and answer questions listed on it.

Review student results:

• As a class, discuss questions that appeared to be more challenging
• Re-teach concepts as necessary