Find where to buy the TI-84 Plus CE graphing calculator in a variety of bold, fun colors.
Download free 90-day trial 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.
Join us as we come together to encourage, engage and empower each other in a shared learning experience.
We are here to help with distance learning resources for schools and districts.
TI Connect™TI Connect™ CE
Students use four criteria to determine if a data set is normal. They begin by looking at a histogram to determine if it is symmetric and bell-shaped.
In this activity, students will use four criteria to determine if a data set is normal. They begin by looking at a histogram to determine if it is symmetric and bell-shaped.
Second, students compare the mean and the median and look at the percent difference to see if they are relatively the same.
Third, students scale the histogram so each bar represents one standard deviation. They use the graph to record the number of data points in each standard deviation. The calculation of the percentage of points in each standard deviation will verify the 68-95-99.7 rule.
© Copyright 1995-2021 Texas Instruments Incorporated. All rights reserved.