Of course this is incorrect, go look up an empire and see.
... Roman empire got over 1000 years, Ottoman's got 623 years, Mongol empire only got 162.
...and Italy, Turkey, and Mongolia are still around, they're just not empires anymore. They're Nations.
“Average”
Mean, median, or mode?
Yes.
I take preference to the “Russian method” cut off the high and low score and mean them.
Of course this is incorrect, go look up an empire and see.
... Roman empire got over 1000 years, Ottoman's got 623 years, Mongol empire only got 162.
...and Italy, Turkey, and Mongolia are still around, they're just not empires anymore. They're Nations.
Mean, median, or mode?
Yes.
I take preference to the “Russian method” cut off the high and low score and mean them.