【多选题】若一组数据的偏度系数是 -0.25 ,则下列说法错误的有
【单选题】In the illustrated circuit, U is equal to _____V. Choose A,B,C o r D. Use KVL. The current flows through the 5V voltage source form the upside to downside is equal to 2+1=3A.
【判断题】Sports players, if good enough, can get a free college education if they play sports for the school.
【判断题】棉花进行打顶过迟,上部 有 效分枝增多。
【多选题】若一组数据的偏度系数是 -0.25 ,则下列说法正确的有( )