Abriol: Death. Rates and Economic Factors 
21,3 309 
changes in the value of the others.”(5) For instance, were 
death rates and taxes correlated in the various provinces, it 
would be found that the high death rates occur in the provinces 
where the taxes are high. This is positive correlation. If, on 
the other hand, the high death rates were found in provinces 
where taxes are low, there would also be correlation, but in 
this case a negative correlation. 
and average number 
Laguna 13.37 .... .... 6.48 Masbate 
Bataan 8.99 .... ....6.36 Surigao 
Rizal 1.88: 6.32 Occidental Negros 
Bulacan ( es Misamis 
Tayabas GAS. Mindoro 
Batangas 6.78 . Nloilo 
Antique 6.29 . Zamboanga 
Pampanga 6.07 . Romblon 
Ambos Camarines 5.61. Marinduque 
Cavite 5.52 Albay 
Nueva Ecija §.41. Antique 
Zambales 5,30 . Oriental Negros 
Noilo 5.02 . Bohol 
Tarlac 4.89 . Palawan 
Marinduque 4.88 . Ambos Camarines 
Pangasinan 4,83 . La Union 
Occidental Negros 4.58... Cebu 
Mindoro 4.30 ... Samar 
Capiz 4.22. Cayiz 
Cagayan 3.90 Sorsogon 
Isabela 3.74. Leyte 
Nueva Vizcaya 3.74 . Pampanga 
Abra 3.52 Bataan 
Albay 3.40 Tayabas 
Romblon 3.87 Abra 
Sorsogon 3.25 .. Cagayan 
Tlocos Sur 3.00 ... Pangasinan 
Tlocos Norte 2.76 . Batangas 
Misamis 2.66 . Zambales 
Oriental Negros 2.66 . Ilocos Sur 
La Union 2.61. Nueva Ecija 
Surigao 2.18 . Isabela 
Bohol 2.01 ... Tarlac 
Masbate 1.65... locos Norte 
_ Palawan 1.63 . Nueva Vizcaya 
Cebu 1.53 ... Bulacan 
Leyte 1.53 ... Rizal 
Samar 1.21... Cavite 
Zamboanga 1.05 ... Laguna 
Fra. 1. Correlation between death, rate per 1,000 population from tuberculosis (left column) 
of persons to a dwelling (right column) in certain provinces of the 
Philippine Islands. 
The application of the theory of correlation involves numerous 
mathematical computations. The simplest method enables one 
to determine roughly the degree of correlation between two 
