相关知识点: 数与代数 比和比例 比 比的计算 试题来源: 解析 【解析】 【解析】 1:0.25 \$= ( 1 \times 4 ) : ( 0 . 2 5 \times 4 )\$ \$= 4 : 1\$ \$= 4 \div 1\$ 【解析】 1:0.25 \$= ( 1 \times 4 ) : ( 0 . 2 5 \times 4 )\$ \$= 4 : 1\$ \$= 4 \...
2 , need to be specified. At times, it may be difficult to propose a value for p 2 . In these cases, it might be easier to propose a value for the odds ratio (OR). The odds of obtaining the response of interest in group 1 are ( ) p p ...