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The following is a solution video to the regression analysis of older vehicles, median age life.
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And it was looking at cars compared to trucks.
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And i'm going to do this in the ti84 graphing calculator.
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You can do this manually if you want.
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You can use excel.
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You can use a different calculator.
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But i find the ti84 to be the easiest to use for the coefficient of determination.
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And that's what we're trying to find, the coefficient of determination.
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So if you go to stat, let's just go ahead and get rolling here, stat and then edit.
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And then l1, you can put your x values.
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I think that was cars.
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And then l2, you can put your y values.
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I think that was the trucks.
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So you can see those are your data values.
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You just type those in.
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Now if there are stuff in there and you don't want to just delete them out, you can simply just go to stat and then clear list.
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I'll go ahead and do this.
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So clear list.
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And if you go to second one, comma, second two, and then if you have others that you need to to clear out, just do comma, second, l3, and so on and so forth.
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And then whenever you press in it should say done.
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And if we go back to stat and edit, you see that those are cleared out.
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Okay, so i'm going to retype those in.
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So 9 .8, 10 .1, 10 .3, 10 .4, 10 .6, 10 .8 .11, 11, and 11 .1.
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And then over here on l2, 8 .6, 8 .7, 8 .9, 9 .3, 9 .8 .8 .8 .8...