But they knew, statistically, that the average roll, if people reported honestly, should have been 3.5.

但他们知道，依照统计学规律，如果所有人都能做到如实上报点数，那么这次实验的平均掷出点数应为3.5。

youdao

Big items will have to go elsewhere--7-Eleven stores average only 2, 600 square feet, after all--and it will take at least a year to roll out this network nationwide.

FORBES: I Got It @7-Eleven