The correlation coefficient Quiz: answer key
Every answer, with a link to its step-by-step solution
| # | Answer | Level | Solution |
|---|---|---|---|
| 1 | D r = 1 | Easy | Solved step by step |
| 2 | r ≈ −0.997 | Easy | Solved step by step |
| 3 | B r ≈ 0.843 | Easy | Solved step by step |
| 4 | r = 0.3 | Medium | Solved step by step |
| 5 | B r ≈ 0.924 | Medium | Solved step by step |
| 6 | r ≈ 0.837 | Medium | Solved step by step |
| 7 | C r ≈ −0.707 | Medium | Solved step by step |
| 8 | r ≈ −0.949 | Harder | Solved step by step |
| 9 | B r ≈ 0.922 | Harder | Solved step by step |
| 10 | r ≈ 0.716 | Harder | Solved step by step |
Grade
Count your right answers and divide by the number of questions: A 90% or more, B 80%, C 70%, D 60%, F below 60%.