Which of the following terms describes the relationship between two quantities graphed on a scatter plot?

-extrapolation

-interpolation

-quantitative data

-correlation

By using a scatter plot we can the relationship of two variables. The technique to measure the strength and direction of this relationship is known as correlation.

There will be two types of correlation.

If the data of the plot show a positive slope of the estimated line then it will be a positive correlation.

Now a correlation value lie between 0 to 1 if it is very close to 0 like 0.1, 0.2 then we can say the correlation is weak psitively correlated. and if it will be close to 1 like 0.8 or 0.9 then the correlation will be strong.

Similarly if slope of the estimated line will be negative then it will be a negative correlation.

So, the correct choice is correlation.