233 |365 A lucky roll

You may believe that rolling two dice all is chance. That guessing the combined number is luck. And to a certain extent you are right.
 
However adding two dice to equal 7 is six times more likely than a rolling double 6. (1+6, 2+5, 3+4, 4+3, 5+2, 6+1 compared to 6+6)
 
You may also believe that being successful is luck. And to a certain extent you are right. However add knowledge to the randomness of life, and you are 6 times more likely to succeed (I just made that up).
 
The point is this: Just as two dice can appear to the uneducated to be just luck, so also success can appear to be just luck.