Q3. Consider a series system of 4 independent components with failure rate functions: h,(1) = 1, h,(t)= 1, h,(t)= 2, h,(1) = 2. (i) Find the reliability function of the system R,(1). (ii) Find the...

Extracted text: Q3. Consider a series system of 4 independent components with failure rate functions: h,(1) = 1, h,(t)= 1, h,(t)= 2, h,(1) = 2. (i) Find the reliability function of the system R,(1). (ii) Find the failure rate function of the system h, (t). (iii) Find the mean time to failure of the system us