What is the average batch size

The maximum batch size is of 20 students. We believe in a small batch size because each and every student gets the attention he or she requires. In a large batch setup, certain students feel less confident and scared to ask questions fearing ridicule from their classmates. However, in a small batch setup like ours, every student can feel confident enough and can voice his or her doubts freely. Scientifically also it has been proven that a batch of around 20 students is very conducive to learning.