实验5-4 使用函数计算两点间的距离 (10 分) #include <stdio.h>#include<math.h>doubledist(doublex1,doubley1,doublex2,doubley2);intmain() {doublex1, y1, x2, y2; scanf("%lf %lf %lf %lf", &x1, &y1, &x2, &y2); printf("dist = %.2f\n", dist(x1, y1, x2, y2)); system...
某实验选取三个样本,其容量分别为: N 1 =4,N2=5,N3=6 ,用方差分析检验平均数之间差别的显著性时,其组间自由度是 ( )A.2B.5C.12D.14的答案是什么.用刷刷题APP,拍照搜索答疑.刷刷题(shuashuati.com)是专业的大学职业搜题找答案,刷题练习的工具.一键将文档转化为在线题库手机刷