When it comes to IQ levels, averages don't matter when people like Solasch have to keep telling us how intelligent they are

It kind of gives the game away

Lies, damned lies, and statistics - that well known old chestnut.

Nothing can be really gained by just quoting an average. An average, as Glanny said is rather meaningless without describing the variations (the standard deviations, usually ±3SD) around the mean. This only works for a standard distribution of data points, but what if the IQ test results are not standard distributions but one that has a long tail on one side and a short, but heavy-weight bump on the other side of the mean? In that case, Solasch's proclamation of "Have you considered the meaning of "average" in mathematics and statistics? Like the average IQ of...." really is pointless because one is quoting an "average" or a "mean" in isolation. It has to be qualified by it's position in the data distribution and the variance around it.

Son, you're asking, "if, no normal distribution etc". Of course the distribution of scores is checked. Whether a score of 98 differs from 102 is dependent on many variables, among others, the sample size.
If the samples are small enough, the difference in IQ between english and zulu's is statistically non-significant.
Educate, educate: https://www.healthline.com/health/average-iq

A tad racist methinks ....

Only if you think the english are less intelligent than the zulu's. Tell me, do you?

I notice you didn't compare us English to the contributors from your homeland Solasch.