The following table gives data on telephone ownership (Y) and per capita GDP (X) for Singapore at the period 1960 to 1981. Is there any relationship between the two variables? How do you know?
| Year | Y | X | Year | Y | X |
|
1960
|
36
|
1299
|
1971
|
90
|
2723
|
|
1961
|
37
|
1365
|
1972
|
102
|
3033
|
|
1962
|
38
|
1409
|
1973
|
114
|
3317
|
|
1963
|
41
|
1549
|
1974
|
126
|
3487
|
|
1964
|
42
|
1416
|
1975
|
141
|
3575
|
|
1965
|
45
|
1473
|
1976
|
163
|
3784
|
|
1966
|
48
|
1589
|
1977
|
196
|
4025
|
|
1967
|
54
|
1757
|
1978
|
223
|
4286
|
|
1968
|
59
|
1974
|
1979
|
262
|
4628
|
|
1969
|
67
|
2204
|
1980
|
291
|
5038
|
|
1970
|
78
|
2462
|
1981
|
317
|
5472
|