Solution:
Given: $P(E)=3 / 5, P(F)=3 / 10$ and $P(E \cap F)=1 / 5$
Evaluating the value of parameter & comparing with given,
$P(E) . P(F)=3 / 5 \times 3 / 10=9 / 50 \neq 1 / 5$
$\Rightarrow P(E \cap F) \neq P(E) . P(F)$
Therefore, $\mathrm{E}$ and $\mathrm{F}$ are not independent events.