You want to know trading and mining which is more profitable ? It depend on what country do you live? The average cost to mine 1 BTC at every countries
is difference, the lowest is Venezuela — $500 and the highest is South Korea — $26,170 and United States is approx $5,000. So we can easy see that if you live in South Korea you can't mine Bitcoin, you only can trading, while mining Bitcoin in Venezuela will give much profit than trading.
As me, trading will give many opportunity than, if you are lucky you can x10 your capital in the short time which can't happen in mining.