http://studenthelp.cpm.org/m/TI-84/l/95290-ti-84-correlation-coefficient
Since I do not know what numbers you input I can not address your question about r=.9549355031
However, this video - mentions some things that you might want to do - to INSURE you start with a clean slate
https://www.youtube.com/watch?v=nw6GOUtC2jY&t=158s
1. at about 40 seconds into the video - she recommends using the clear button, to clear data out of L1 & L2 before entering new data.
2. she reinforces the r = correlation coefficient at about 3:10 min into the video restates that r=Correlation Coefficient in the formula
3. If you like the way that she explains doing things on the TI calculators - here is the link to her play list
https://www.youtube.com/user/IntroStats/videos?sort=dd&view=0&shelf_id=1