Infogaphic source: Kissmetrics

Bounce rate demystified – what is bounce rate? Bounce rate as defined by Google analytics: the percentage of single-page visits. Bonce rates is a measure of visit quality and a high bounce rate usually indicates that landing pages are not relevant to your visitors.
This most interesting part of this infogaphic is the bounce rate by industry section and what average bounce rates are on certain pages. Tips for improving bounce rate include:
Providing relevant content
A clear navigation path
Links to glossary pages
Prominent search function
Remove pop-ups
Reducing external links.