I OUTPUT nti tled 网口 2-WAY CONTINGENCY TABLE TABLE OF A BY B Frequency Percent Row Pct co工Pct 21 Total 25.00 25.00 50.00 50.00 50.00 33.33|100.00 2 2 2 50.00 0.00 50.00 100.00 0.00 66.67 o.00 Tota工 75.00 25.00100.00 Frequcncy Missing =213