Find where to buy the TI-84 Plus CE graphing calculator in a variety of bold, fun colors.
For a limited time, download free versions of the most popular TI software and handheld emulators.
Bring a new dimension of learning to your classroom with activities that put math in motion.
Explore teaching strategies to help students succeed on the SAT® and ACT® math tests using TI technology.
Drive deeper, more relevant understanding of science in middle grades and high school.
Students calculate percentiles, z-scores, and probabilities using normal distributions.
The activity begins with a review of the properties of normal curves along with a visual representation of the corresponding percentages. The worksheet then introduces z-scores and percentiles.
Students are given a range of x-values and asked to find the probability (or percent) of data that fall within the interval. To find the answer, they will first use a graph and then follow up with numerical calculations.
In the last two parts, students are to find the corresponding x-value given a percentile and then given a z-score and they are asked to find the corresponding percentile and x-value.
© Copyright 1995-2020 Texas Instruments Incorporated. All rights reserved.