The correlation is a number that tells us how related are two values, in this case, we have points in a graph if the points follow a specific pattern that would be a correlation closer to 1 but if you have that the points don't have any pattern or you can see that the points are very far away from each other that would be a correlation closer to 0, and if you have a negative correlation means that when one variable is increasing the other is decreasing. For example:
So, if we analyze the figures provided we can compare the values and the graphs and give a correlation to each figure:
The first one is a negative correlation because when the x-axis is increasing the y-axis is decreasing, so the correlation will be b. -0.77.
In the second graph, you can see that the points disperse but not as much as in the third figure so we can give in this case a correlation of c. 0.23
In the third graph, there is almost any correlation, as you can see is the graph with the most dispersed points so we can give in this case a correlation of a. 0.12
In the last case, there is a positive correlation because when the x-axis increases the y-axis does the same, and the points follow a specific pattern, so the correlation, in this case, is d. 0.93