ANSWER: The data collected is NOT an appropriate representation that can be used to determine how much you should sell your house.
EXPLANATION: A house is evaluated by the contents which were used to build it. For instance a house built with a bricks can not be of the same value with a wood or block house, even though they have the same pattern.
Because the data does not show the values of the contents of the house, which are: walls, pattern, designs, how many stirs, roof, and interior quality, it cannot be used to determine the price you should sell your house.
Also, looking at the data gotten, you can understand that this houses has been sold according to the contents that made up the building, because some old builder were sold more costlier than some new buildings, and some building with a much bigger square feet were sold in a lower price when compared to some buildings with a smaller square feet