S/N States Xi Range Yi
1 Abia 18 1-18 22
2 Adamawa 21 19-39 41
3 AkwaIbom 31 40-70 65
4 Anambra 20 71-91 52
5 Bauchi 8 92-111 38
6 Bayelsa 23 112-119 37
7 Benue 27 120-142 27
8 Borno 18 143-169 42
9 Cross River 25 170-187 25
10 Delta 12 188-212 47
11 Ebonyi 18 213-224 29
12 Edo 16 225-242 31
13 Ekiti 16 243-258 21
14 Enugu 11 259-274 21
15 Gombe 27 275-285 14
16 Imo 27 286-312 63
17 Jigawa 27 313-339 65
18 Kaduna 23 340-362 59
19 Kano 45 363-407 123
20 Katsina 34 408-442 38
21 Kebbi 20 443-461 9
22 Kogi 21 462-482 40
23 Kwara 16 483-498 7
24 Lagos 20 499-518 43
25 Nassarawa 13 519-531 60
26 Niger 26 532-557 39
27 Ogun 20 558-577 25
28 Ondo 18 578-595 36
29 Osun 30 596-625 50
30 Oyo 33 626-658 47
31 Plateau 17 659-675 20
32 Rivers 23 676-698 34
33 Sokoto 23 699-721 3
34 Taraba 16 722-737 71
35 Yobe 17 738-754 19
36 Zamfara 14 755-768 35
Table 1: The correlation coefficient Are between the auxiliary variable xi and the variable of interest yi.