You don't want to play this game lil pup
Now do the same for all season , goals/90mins , in the games he was a starter vs when he didn't play or came in as a sub , I want to check something.
But I've already said, study math. For probability - the larger the sample, the more reliable the results. How many matches did he not play in, and how many did he play in. Now, so that you understand better. Take all the matches since he came to Barcelona and check how many goals were scored on average, and then check all the matches he didn't play in since he came and the goals. Eh, I see you still don't understand. For you, 2+2 is 5....
Your reasoning is as follows, Lewandowski will play 37 matches and the average goal will be 3, he won't play in one and they will score 4. For you, the second sample will be more important. Did you swap brains with a chicken? Actually, if that were the case, the chicken would be screwed....