Figure 5 shows the correlation between measured alpha and beta activity of borehole water samples of Dutse town.
The following were computed: coefficient of determination (R) of 0.05, Pearson correlation coefficient (r) of 0.23,
gradient of 19.11 and intercept of 10.61 respectively. A single point was also removed to improve the correlation as was done for well water samples but yet very poor correlation was obtained.