Rounded to three decimal places, what is the value or r for this set of data?
x=8,15,3,7,2,14,20
y=50,75,23,31,18,68,98
1)0.870
2)0.897
3)0.978
4)0.989
x=8,15,3,7,2,14,20
y=50,75,23,31,18,68,98
1)0.870
2)0.897
3)0.978
4)0.989