Question: question 3 please 3. [CLO-3(C4)] A cardiac pacemaker is a medical device that generates electrical impulses delivered by electrodes to cause the heart muscle chambers

question 3 please

question 3 please 3. [CLO-3(C4)] A cardiac pacemaker is a medical device

3. [CLO-3(C4)] A cardiac pacemaker is a medical device that generates electrical impulses delivered by electrodes to cause the heart muscle chambers to contract and therefore pump blood; by doing so this device replaces and/or regulates the function of the electrical con- duction system of the heart. The pacemaker's battery usually last from five to 15 years. Assuming that the lifetime T in years of the artificial pacemaker has the following cumula- tive distribution function. t. 15 (a) Find the reliability and mean time to failure of the pacemaker. (5) (b) Find the failure rate function. (5) (c) After how many years should the doctors change the device in order to provide 90% reliability to the patient. (5

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