Loadrunner Analysis Response times in summary and Avg.transaction response time graph

In loadrunner analysis file, we see response times in two areas.

1. Summary report 2. Avg. transaction response time graph.

But if we observe Min,Max,Avg value in both sheets it differs. Don't confuse and Tense.Here is the reason why?

Summary report publishes exact response times and Avg.transaction response time graph plots a graph and below table based on granularity.The more granules , the accurate the graph shows. Below table is based on the graph values. it caluculates Max,min,Avg,std.dev etc. Hope it clears.