Some of the main factors needed to reduce the bounce rate content are more accessible and it is system formatting,optimize the page load time for quick loading website,make your site easy to search,need to optimize for mobile site..

To reduce bounce rate do the following things on your webpage :
1. Reduce page load time
2. Reduce webpage size
3. Use attractive images or offers
4. Use informative content
5. Design responsive pages

provide quality content.. first impression makes people to coherent to other pages. it reduces bounce rates