in order to draw a scatter diagram we need interval data for
Scatter plot A scatter plot can be used either when one continuous variable that is under the control of the experimenter and the other depends on it or when both continuous variables are independent. If a parameter exists that is systematically incremented and/or decremented by the other, it is called the control parameter or independent variable and is customarily plotted along the horizontal axis. The measured or dependent variable is customarily plotted along the vertical axis. If no dependent variable exists, either type of variable can be plotted on either axis and a scatter plot will illustrate only the degree of correlation (not causation) between two variables.
Metes and bounds Typically the system uses physical features of the local geography, along with directions and distances, to define and describe the boundaries of a parcel of land. The boundaries are described in a running prose style, working around the parcel in sequence, from a point of beginning, returning to the same point; compare with the oral ritual of beating the bounds. It may include references to other adjoining parcels (and their owners), and it, in turn, could also be referred to in later surveys. At the time the description is compiled, it may have been marked on the ground with permanent monuments placed where there were no suitable natural monuments.