TheSword
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Ah, good, I should have explained what I meant better in my original post. I was referring to the average of the choice made not the average of any given die roll or array.Ah. No, I meant in general. You're asking about the average of one particular stat of one particular kind of character, which is a different question, and not what I saw you asking above.
For what I was talking about - if you are using a standard array, finding the average stat is, in fact, trivial. 15, 14, 13, 12, 10, 8 - averages to 12. Typical ability score adjustment is +3, which means 0.5 per stat - average is 12.5.
The average stat generated by 4d6 drop lowest is, iirc, 12.24, for comparison.
For point-buy, you can do the same analysis across the unique stat combinations that the system can generate.
For what you want, you probably want to go and very politely request the folks at D&D Beyond to make the data available, because they have it.
I was questioning the validity of the phrases like ‘stronger than average’ where we can’t know what the average of non orcs let alone be bound to make our orcs stronger, because this is a function of Player choice not dice roll.
I will bet all the money in my pockets that the d&d beyond data would show orc characters will be stronger on average than non Orc PCs. Because of class choice and the benefit gained by the +2 strength, even on classes that don’t make use of it.
However the suggestion that any PC is bound to follow those choices is incorrect but the spirit of the question is should PC orcs tend to be stronger than PC humans and my answer to this is overwhelmingly yes.