Have $ x_{1}$ ... $ x_{10}$ r.v$ X_{1},X_{2},\cdots,X_{10}$ random sample from a distribution with PDF:
$$ f(x;\theta) = e^{ - (x- \theta) },\, \theta \leq x \lt \infty $$
Know that $ \theta_{MLE} = Y = min(X_{i}) $$ \hat{\theta}_{MLE} = Y = min(X_{i},\;i=1,2,\cdots,10) $
How do I go about finding the PDF of Y?