Download free 90-day trial versions of the most popular TI software and handheld emulators.
Check out TI Rover activities that put math, science and coding in motion.
Customize your summit experience with sessions on math, STEM, coding and more.
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 1995-2018 Texas Instruments Incorporated. All rights reserved.