To try to overall minimize the squared distance between And there's many techniques for doing it, but one typical technique is You could do it by hand, but we have computers now And then what you're likely to do is input them into a computer. Maybe there's a grown adult, with bigger feet and who's taller. Let's say those 20 peopleĪre these 20 data points. Talk about the conditions necessary for makingĪppropriate inferences.

Let's say you take a random sample of 20 people from the population. And then you could, to see if there's an association, Three feet, four feet, five feet, six feet, seven feet. And then, on this height, or on this axis, our y-axis, this would be height, so one foot, two feet, One, two, three, four, five, six, seven, eight, nine, 10, 11, 12, and it could keep going up from there. Want to do is we could, here on the horizontalĪxis, that is shoe size. There's a positive association between shoe size and height.

Inference is new to you or hypothesis testing, once again, watch those videos as well. How we can make inferences from a regression line. Regression is foreign to you, I encourage you to watch the Video, we're going to talk about regression lines,īut it's not gonna be the first time we're talkingĪbout regression lines.

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