How to divide data for a three median regression line if there are 8 sets of data

Answer 1

To divide data for a three median regression line with 8 sets of data, you would need to first sort the data from smallest to largest. Next, find the median of the data which is the middle value in the sorted data set. Then, divide the data into three groups based on the median value.

For example, if your data set is {2, 4, 6, 8, 10, 12, 14, 16}, the median is 9 (the 5th value in the sorted data set).

Divide the data into three groups based on the median value:

Group 1: {2, 4, 6, 8}
Group 2: {10, 12}
Group 3: {14, 16}

You can then calculate the median of each group and fit a regression line through these three median points to determine the three median regression line for your data.