Why didn't they guarantee being correct by picking a range of none to ten thousand?

为什么他们不为了确保正确而选择从零到一万的范围呢？

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The second effect was “range reduction”: In mathematical terms, correct answers became clustered at the group's edges.

第二个因素是“范围缩小“：用数学术语讲，正确的答案集中在群的边缘。

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Correct handling of numeric types for both sorting and range queries.

能正确处理用于排序和范围查询的数值类型。

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The PayScale Instant Salary Report will give you a general idea of whether your current salary is in the correct range.

FORBES: Want a Raise? PayScale Has An App for That

So while only 10% of the time is spent on the formal lessons, they are a pre-requisite for correct practice at the driving range.

FORBES: Choosing the Right Training?

This does have the downside of this system, in which the player may have to point his thumbstick in a range of directions while mashing the jump button until the correct move is reached by a process of elimination.

FORBES: Five year mission