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.
Any TI graphing calculator can be programmed using a language called TI-Basic. In this blog post, learn how to get started coding with your TI calculator.
Explore teaching strategies to help students succeed on the ACT® math test using TI technology.
Students will test a claim about the standard deviation by comparing the χ2 value to the critical value.
After a review of the Chi-square distribution and the formula used to calculate a chi-square value, students are led through an example, step-by-step, to test a claim about standard deviation.
Students will determine the null and alternative hypothesis, calculate the chi-square value and critical value, and graph the chi-square distribution to see the critical region.
© Copyright 1995-2019 Texas Instruments Incorporated. All rights reserved.