The Median-Median Line. Process zSort the collected data by the independent variable. zDivide the sorted data into three groups. zFind the median x and.

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Presentation transcript:

The Median-Median Line

Process zSort the collected data by the independent variable. zDivide the sorted data into three groups. zFind the median x and the median y of each group. zFind the equation of the line that passes through (x1, y1) and (x3, y3).

Process zFind the equation of the line parallel to the previous line that passes through (x2, y2). zFind the weighted average of the y-intercepts. b=(b1+b2+b1)/3 zThe median-median line is the line parallel to the previous two lines with the weighted y-intercept.

Wave Data

Process zSort the collected data by the independent variable. zDivide the sorted data into three groups. zFind the median x and the median y of each group. zFind the equation of the line that passes through (x1, y1) and (x3, y3).

Process zFind the equation of the line parallel to the previous line that passes through (x2, y2). zFind the weighted average of the y-intercepts. b=(b1+b2+b1)/3 zThe median-median line is the line parallel to the previous two lines with the weighted y-intercept.