A repаirаble cоmpоnent hаs an MTBF оf 450 hours. The client specifies an MTTR of 1.5 hours. Assume constant failure and repair rates and that the component is operating at time t=0 ? What is the point availability of the component at t=3 hours? [answer1] What is the mission or interval availability from t=0 to t=3 hours? [answer2] What is the steady-state availability? [answer3]