例句與造句

1. The basic marginal ratio statistics are obtained by dividing the 2? = 4 values in the table by the marginal totals ( either rows or columns ), yielding 2 auxiliary 2? tables, for a total of 8 ratios.
2. This is often not very useful, compared to the marginal ratios, as it does not yield useful marginal interpretations, due to mixing true positives ( test positive, condition positive ) and true negatives ( test negative, condition negative )  in terms of the condition table, it sums the diagonal; further, it is prevalence-dependent.
3. It's difficult to find marginal ratio in a sentence. 用marginal ratio造句挺難的