Find the mathematical formula that best describes the data set.
A data set with 25 samples. Each sample has 5 elements.
Can you provide the data set to work on?
Complete the following task based on the instruction and optional input provided.### Instruction:
Find the mathematical formula that best describes the data set.

### Input:
A data set with 25 samples. Each sample has 5 elements.

### Output:
Can you provide the data set to work on?