Let \( X=\left\{(x,y)\in \mathbb{Z}\times \mathbb{Z} : \frac{x^2}{8}+\frac{y^2}{20}<1 \text{ and } y^2<5x\right\} \). Three distinct points \( P, Q \) and \( R \) are randomly chosen from \( X \). Then the probability that \( P, Q \) and \( R \) form a triangle whose area is a positive integer, is:
