Compression is a process which reduces the number of bits requires representing data. In order to understand it in a more simplified way, consider the following example: 1111511115511115551111 (22 characters)
The above example is consist of 22 characters. While reading the series, you can analyse that 1111 repeat many times. This repetition of the process also known as statistical redundancy.
You may notice that while using files compressing software’s like WinRAR and WinZip, you will find that sometimes the data compresses hardly and sometimes compression reduces the data in a smoot