Wiktionary
n. (context mathematics English): The largest or biggest number out of a data set, usually farther away from interquartile range.
Usage examples of "upper extreme".
The upper extreme of 1,100 people per square mile was reached on the high island of Anuta, whose population converted essentially all the land to intensive food production, thereby crammed 160 people into the island's 100 acres, and joined the ranks of the densest self-sufficient populations in the world.
The upper extreme of 1,100 people per square mile was reached on the high island of Anuta, whose population converted essentially all the land to intensive food production, thereby crammed 160 people into the island’.
Reave, who had seen a hundred variations of that kind of insular stasis town, suspected that the clouds were probably a permanent fixture, hiding the fact that the mountains had no real peaks but simply faded into the upper extreme nothings.
The depredators were certain reptilian beings, colossal in size and winged like pterodactyls, who came down from their new- built citadel among the mountains at the valley's upper extreme.