Question
Question: If | | | | | | | | | |-----|-----|-----|-----|-----|-----|-----|---...
If
| x : | 25 | 17 | 21 | 23 | 12 | 18 | 22 |
| y : | 22 | 20 | 24 | 25 | 17 | 11 | 18 |
the value of r will be approximately
A
0.47
B
0.55
C
0.52
D
None of these
Answer
0.52
Explanation
Solution
Use 
.