Bounce rate is the %age of visitors come to visit a web page and immediately left from the entrance .Bounce rate is to measure the Quality of web page .Few factors that make bounce rate Good are Minimum Load time ,Good web design , Navigation is well.
Agree . Should have minimum Loading time and Good Web Design So that visitor not Left just by Entering with Website . And Also try to load website only by Relevant Queries . Bounce rate is User satisfaction Metric and Shows how Reliable is Website over web .