Firebase trace showing wrong median time latency?

Question

I am adding Firebase performance trace in my app and below image is data for last 24 Hrs

As you can see the Median is 647ms<

Answer 1

95% does not mean 95% of the time, it is the 95th percentile in the value range, not to be confused with frequency.

Most (90%) of your "executions" will be between 5-95% so it makes sense that the median is 647 ms.

I don't know exactly what the 95% value represents, it could be an average of the top 5% execution times or it could be the first value in the range.