nicknamenick,
In statistics the median is the midpoint which separates the highest value from the lowest, the arithmetic mean is the average, the sum of all the results of a study divided by the number of results.
IQ in a population can be understood when plotted as a bell curve, the left side being the lowest score the right the highest, different populations will produce different results based on different variables, age, gender, ethnicity/race, economic status etc.
What I'm saying is that the testing done on African and West Asian migrants by European scientists suggests that due to their poor cognitive abilities the vast bulk of "refugees" will be a lifetime burden to social services and a danger to other citizens because of their mental incompetence.
For an example in the news today look at the footage of the brawl at an Ice Cream shop in Brighton Le Sands last night, low IQ Arabs running amok because they lack the cognitive abilities needed to resolve problems without violence.
It's not just violent crime and religious extremism which pose a danger to other citizens, things like unlicensed driving by people incapable of passing their test, incompetence/omission of action in the workplace, corruption and so forth.

' Alright then Runner, you have a problem with all the races who have people practicing the Muslim religion...and you lump them all in one terrorist basket'

again Susie your misrepresentation shows exactly why we have this problem now in Europe and Britian. Just try to think rationally just for once. I just happen to have friends from many nations where Islam is dominant. It is the ideology that is the problem. Just like you hate the ideology of what you term fundamentalist Christians (again usually totally misrepresented)I hate the ideology of blowing up innocent people (including kids) because they are infidels. I hold little hope for this country when views like yours are based largely on wilful ignorance.

Russia has ample evidence of ISIS oil tankers taking Syrian oil to Turkey. It is this oil which finances the ISIS terrorists. Turkey is a member of NATO. http://www.youtube.com/watch?v=Ens5MshcYdY

JoM
So please answer my q. What difference does "mean" vs. "median" make to your point ?
There are 5 IQ points between Iraq and Ireland. What evidence is there that a below-average Irish can't get a driver licence? Or that Iraqis are not the people driving cars on Iraqi roads? Who are they - Japanese maybe or Swedes?

Runner " I hate the ideology of blowing up innocent people (including kids) because they are infidels. I hold little hope for this country when views like yours are based largely on wilful ignorance."

Do you think that Muslim terrorists are the only ones who blow up innocent people, including children? Who is the ignorant one then?
I know exactly where you and other minority nationalistic righties are coming from, and it has nothing to do with the blowing up of innocent people, children or not.

Donald Trump says Turkey are funding ISIS via the theft of oil from Syria. http://www.youtube.com/watch?v=FJqLAleEnKw#t=403
There is no way Turkey could have taken down the Russian MIG alone. This was a planned attack to bring on a major war with Russia.

The USA has 900 military bases around the planet and has on going wars in multiple countries. Who are the true aggressors ?