Find answers to the top 10 questions parents ask about TI graphing calculators.
Download free 90-day trial versions of the most popular TI software and handheld emulators.
Learn about the math and science behind what students are into, from art to fashion and more.
Get ready for back to school with T³™ Webinars to enhance your teaching and TI technology skills.
We are here to help with distance learning resources for schools and districts.
Update OS, transfer files andtake screen captures for yourTI-Nspire™ CX II graphing calculator.
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 1995-2022 Texas Instruments Incorporated. All rights reserved.