Education Technology

# Activities

• ##### Subject Area

• Math: Statistics: Normal Distributions

9-12

50 Minutes

• ##### Device
• TI-Nspire™ CX/CX II
• TI-Nspire™ CX CAS/CX II CAS
• TI-Nspire™ Navigator™
• ##### Software

TI-Nspire™
TI-Nspire™ CAS

5.4

## Percentiles

#### 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.

#### 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