A t-test is a ratio of ___________ to ___________.
举一反三
- A t-test is a ratio of ___________ to ___________.（ ） A: expected values; observed values B: between-group differences; within-group differences C: success; failure D: highest scores; lowest scores
- When comparing the means of three groups and above in population, we use A: t-test B: ANOVA C: Chi-square D: Rank test
- 145.var t = 10; function test(test){ t = t + test; console.log(t); var t = 3; } test(t); console.log(t); 运行结果是( )?
- 假设有类Test，下列可以正确创建对象的语句是（ ） A: Test t=1; B: Test t=new Test(); C: Test t=new Test; D: Test t= Test();
- 分析下段代码输出结果是 var t = 10;function test(test){ t = t + test; var t = 3; console.log(t); } test(t); A: 6 B: 3 C: 13