I worked on an e-commerce site that attempted to solve the issue by simply not giving an average rating to an item until it had a certain amount of reviews. We

I worked on an e-commerce site that attempted to solve the issue by simply not giving an average rating to an item until it had a certain amount of reviews. We still showed the reviews and their scores, but there was no top level average until it had enough reviews. We spent a lot of time in user testing and with surveys trying to figure it how to effectively communicate that.