According to this data, the average bounce rate is 40%, which is interesting. But whether your target bounce rate should be 40%, 30% or 15% depends on your industry, what type of page (home page, product page, which product, etc), and even what traffic source or referring keyword.
This infographic shows you visually how various industries can vary in average bounce rate, for example, along with some tips on how you can move the needle in the right direction on your own pages.
Original source: KISSmetrics blog