Explanation
For a managed table, a drop command will drop everything from metastore and storage.
See the below image to understand the differences between dropping an external table.
Diagram Description automatically generated

Explanation
This is the minimal permission a user would need to start and attach to an already configured cluster. Cluster creation allowed means that the user can create new clusters or start existing clusters that are stopped. "Can Attach To" privileges on the required cluster means that the user can attach notebooks or libraries to that cluster and run commands on it. Verified References: Databricks Certified Data Engineer Professional, under
"Security & Governance" section; Databricks Documentation, under "Cluster permissions" section.

Explanation : RY = b0 + b1x1+b2x2+ .... +bnxn
In the linear model, the bi's represent the unknown p parameters. The estimates for these unknown parameters
are chosen so that, on average, the model provides a reasonable estimate of a person's income based on age
and education. In other words, the fitted model should minimize the overall error between the linear model and
the actual observations. Ordinary Least Squares (OLS) is a common technique to estimate the parameters

The DELETE operation in Delta Lake is ACID compliant, which means that once the operation is successful, the records are logically removed from the table. However, the underlying files that contained these records may still exist and be accessible via time travel to older versions of the table. To ensure that these records are physically removed and compliance with GDPR is maintained, a VACUUM command should be used to clean up these data files after a certainretention period. The VACUUM command will remove the files from the storage layer, and after this, the records will no longer be accessible.