Hello, I was wondering how many no change answers you are supposed to get on the writing section of the SAT? I feel like I pick no change too often and most of them end up being wrong.
It varies a lot, but approximately 1/4 should be “no change.” @jyp2pm1
But how many is that? like 2? or 4?
How many questions in the section? Divide that by four and the answer will be something like that.
But as @marvin100 said, it varies. So it would be silly to let your answer to a given question be influenced by whether you thought there were not enough or too many of a particular answer choice already. In other words, say you knew that the average was 3 of them and even also knew that the standard deviation was 1. (You don’t know this, but even so…) What exactly are you going to do with this information? If it influences one of your responses in any way, then you have taken your eye off the ball. Deal with each question one at a time, on its own merits, and then move on. Don’t let this test make you crazy 
If you want stats, here they are: out of 44 questions in the grammar section you can expect between 6 and 12 “no change” answers. The problem is: you may have the correct amount, but they may all be answered incorrectly (which means you have many missed “A”'s elsewhere). So… back to pckeller’s valid point: don’t think about it when you are answering a question.