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In this video I want to give you an example of what it means to fit data to a line. Instead of doing my traditional video using my little pen tablet, Im going to do it straight on Excel so you could see how to do this for yourself, so if you have Excel or some other type of a spreadsheet program. Were not going to go into the math of it. I really just want you to get the conceptual understanding of what it means to fit data with line, or do a linear regression. So here, lets just read the problem. The following table shows the median California income-- remember median is the middle, the middle California income --from 1995 to 2002 as reported by the U.S. Census Bureau. Draw a scatter plot and find the equation. What would you expect the median annual income of a California family to be in the year 2010? What are the meanings of the slope and the y-intercept of this problem? So the first thing youd want to do-- I just copied and pasted this image --we have to get the data in a for
