同一时段中，删除的观测值个数与获取的观测值总数的比值。
我们将面试不在录取率统计数据中的学生给剔除了，那个统计数据是有面试的申请人比上没有面试的申请人。
You should know that we pull out students whose interviews have been waived from the admit-rate statistics for applicants with interview vs. applicants without interview.
他指示Fed的研究人员将所谓的“特殊因素”从CPI中剔除，关注于“更纯粹”的美国“实际”通货膨胀率数据。
He instructed the Fed's research staff to strip the CPI of its so-called special factors and focus on a cleaner read of America's underlying inflation rate.
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