Which is a correct step when using the median-fit method for modeling data?

In the median-fit method, first order the data by x-values and divide it into three groups. Find the median x-value and median y-value in each group to make three summary points; these points are then used to estimate a line of fit. Choice A describes finding medians, while the method does not use the median of several y-intercepts as in choice C.

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