Question 1195603
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        To learn on how to do it,  see any or all of these video-lessons


https://www.youtube.com/watch?v=vytEFKXZVcI


https://www.youtube.com/watch?v=HTFtogVoLiw



        or textual description from these sources


https://achievethecore.org/content/upload/ttc_import/1402283040-36-4532/RODERIQUE_Regression_on_the_TI.pdf


https://www.statology.org/line-of-best-fit-ti-84/