Programming invT into a Ti 83 or Ti 83+ Calculator

This video steps you through programming the invT function into your Ti 83/83+ calculator. The invT function is similar to the invNorm function; it computes t-values given two inputs: the area to the left of the t-value you are looking for, and the degrees of the freedom. In other words, it is the inverse of the tcdf function.

Update: As someone very helpfully suggested, use the "A-LOCK" (alpha lock) when typing in alpha characters so you don't have to keep hitting "ALPHA" before each character.

Category:

Education

Tags:

• invT
• program
• Ti
• graphing
• calculator
• Students
• t-distribution
• statistics
• tcdf

[bigmac364]

Also.

2nd Alpha is your friend.

[IntroStats]

@bigmac364 Excellent tip, thank you!

[IntroStats]

Update: you can find the < (less than) sign in the 2nd TEST menu more quickly than finding it in the 2nd CATALOG menu.

[IntroStats]

@frindle123 Glad you found it!

[frindle123]

@frindle123 Never mind, I just found it nestled between all the programs in EXEC. Sorry for the disturbance.

[jcpartri]

:-) Most valuable video on the web for me today. Many thanks and many blessings! :-)

[frindle123]

Great video but im not getting invT in pgrm after i enter in all the data and finish off with 2nd quit. Do i finish by pressing a button so that invT goes to program. When i go to program, I see invT in EDIT, but when i click it, it goes straight to the code. I have TI-83 Plus Silver

[MrHarmonk]

Wonderful



[Rndldd]

Works great! Thanks!

[PSPJOHNPSP]

Thanks, this helps alot!

[borgettifan09]

Thank you!!!!! :)

[Hoihoijooah]

Anyone knows what is the increasing speed of for function? I want to make a stopwatch and I thought for function is the only way to do this but I don't know the increasing speed of for function. If you have better way, please tell me.

[jnel305]

Thank you so much.