A.1點(diǎn)超3sigma和連續(xù)7點(diǎn)在中心值一側(cè) B.1點(diǎn)超3sigma和3點(diǎn)中有2點(diǎn)在A區(qū)或A區(qū)以外 C.1點(diǎn)超3sigma和連續(xù)7點(diǎn)上升或下降
A.12 B.24 C.48
A.25 B.20 C.30