Education Technology

Activities

• Subject Area

• Math: Statistics: Normal Distributions

9-12

50 Minutes

• Device
• TI-83 Plus Family
• TI-84 Plus
• TI-84 Plus Silver Edition
• TI-84 Plus C Silver Edition
• TI-84 Plus CE
• TI-84 Plus CE Python

Percentiles - IB

Activity Overview

The goal of this activity is for students to use the area to the left of a value in a normal distribution to find its percentile. The process will then be reversed to find the value for a given percentile. In doing so, students will learn how to use the Normal CDF and Inverse Normal commands on the handheld.

Objectives

• Students will learn review the concepts of a normal distribution and its characteristics, including but not limited to percentiles and area under a normal curve.
• Students will practice how to use the handheld commands Normal Cdf and Inverse Normal.
• Students will try to make a connection with how to understand these topics in IB Mathematics courses and on their final assessments.

Vocabulary

• Percentile
• Normal Distribution
• Empirical Rule
• Probability
• Standard DeviationMean