绪论单元测试1.Penny Bauer, Chief Financial Officer of Harrison Haulage, suspects irregularities in the payroll system, and orders an inspection of ‘each and every payroll voucher issued since 1 January 2005’. Five per cent of the payroll vouchers contained material errors. This is an example of ________________.
A:nominal data B:nonparametric statistics C:inferential statistics D:descriptive statistics
答案:D
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