I'm working on paper Double-Spending Attacks on Fast Payments in Bitcoin.
And I see they give out the result :
block generation time is approximately 10 minutes (9 minutes and 54 seconds), the standard deviation of the measurements was about 881.24 seconds
They used data from blockexplorer, with data from block #0 to block # 153260.
Block generation time for block#n= (timestamp of block#n+1) - (timestamp of block#n)
But I get the result as below:
Mean: 9.8 minute = 9 minute 48 secod standard deviation: 1477.469066205157
It's quite different to paper aforementioned paper.
If anyone worked or know how to work with blockchain data, please help me.