A continuous variable XXX has a CDF F(x)=1−e−λxnF(x) = 1 - e^{-\lambda x^n}F(x)=1−e−λxn for x>0x > 0x>0. What is the hazard rate function h(x)h(x)h(x)?
λnxn−1\lambda n x^{n-1}λnxn−1
λxn\lambda x^nλxn
nxn−1n x^{n-1}nxn−1
λe−λxn\lambda e^{-\lambda x^n}λe−λxn