Each table shown below presents z scores on an x variable and on a y variable. Select the r value that best expresses the relationship between x and y.

Table 1
z score - X ................................. z score - Y
-1.39 .................................................. 0.93
-0.93 .................................................. 0.46
-0.46 .................................................. 1.39
0.00 .................................................. 0.00
0.46 .................................................. -0.93
0.93 .................................................. -1.39

a. -.85
b. .00
c. .85

Table 2
z score - X .............................................. z score - Y
1 ................................................................... -1
0.5 ............................................................. -0.5
0 .................................................................... 0
-0.5 ............................................................. 0.5
-1 ................................................................... 1

a. -1.00
b. .00
c. 1.00

Table 3
z score - X ....................................... z score - Y
-1.12 ......................................................... 0.91
-1.12 ......................................................... -0.91
0.00 ............................................................ 0.91
0.00 ........................................................... -0.91
1.12 ............................................................ 0.91
1.12 ........................................................... -0.91

a. -.95
b. .00
c. .95

Table 4
z score - X ............................. z score - Y
-1.26 .............................................. -1.26
-0.63 .............................................. -0.63
0.00 ................................................ 0.00
0.63 ................................................ 0.63
1.26 ................................................ 1.26

a. -1.00
b. .00
c. 1.00