Several things become readily apparent from the graph:
There is one campaign — Extreme Geeks — that has a very high CTR and conversion rate. While the CPLs are very low on this campaign, it does have a small reach.
There is a relationship between CTR and Conversion Rate (CVR). The higher the CTR the higher the CVR. However, the relationship is only moderately strong.
The broad targeted campaigns have good reach but poor conversion rates.
There are some campaigns that have good reach, good conversion rates but poor CTR. These are campaigns above the regression line.