I'd like to argue that someone understanding of the English language has little to no correlation to a person's IQ. Indeed, typically those with low IQs tend to be less than proficient. However I don't believe a person's writing can accurately determine their intelligence. Also consider that this forum is made of of users from multiple countries and walks of life, I think it is safe to determine that their reading and writing of the English language has nothing to do with their IQ.
Now to actually answer your question (speculation):
I think the majority is slightly above average. With the mean being somewhere around 110, with a standard deviation of 13.3. The distribution would of course be skewed left (or negative). Something similair to this image. I do not think we follow a standard bell-shape distribution.
Now to actually answer your question (speculation):
I think the majority is slightly above average. With the mean being somewhere around 110, with a standard deviation of 13.3. The distribution would of course be skewed left (or negative). Something similair to this image. I do not think we follow a standard bell-shape distribution.
You are very likely correct, I was just getting annoyed by a few outliers on the far left of that graph
