Correlation Matrix is a great way to show simple relationships between various metrics.  It is very easy to use because all you need is a set of 2 or more metrics to make it useful.  With this sample data we can easily see that Shipping Cost has a fairly strong negative correlation on Quantity Ordered and Profit.  Might not be a revelation but it’s sample data, so hopefully you get the point.  

Works great with filters and in a trellis allowing you to see the same relationships across various categories.  Great use case for marketers or when analyzing sales data in general.  

Also works well on mobile devices.  All Oracle Analytics visualizations are responsive and adaptive out of the box.

https://en.wikipedia.org/wiki/Correlation_and_dependence in case you want to geek out but for the rest of us you can just learn more and play with Oracle Analytics – https://www.udemy.com/augmented-analytics/