Education Technology

# Activities

• ##### Subject Area

• Math: Statistics: Normal Distributions

9-12

45 Minutes

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

TI-Nspire™
TI-Nspire™ CAS

3.0

## Normal Probability Plot

#### Activity Overview

This lesson involves creating a normal probability plot for several data sets involving height to examine the appearance of such plots when the distribution is approximately normal.

#### Objectives

• Students will identify the shape of a distribution as being skewed or mound-shaped and approximately symmetric.
• Students will recognize that a normal probability plot of skewed data is nonlinear and either concave up or concave down.
• Students will recognize that a normal probability plot of approximately normal data is approximately linear.
• Students will identify outliers on a normal probability plot.

#### Vocabulary

• normal
• normal probability plot
• outlier
• skew
• symmetric