Among 8592 cases of heart pacemaker malfunctions, 458 were found to be caused by firmware, which is software programmed into the device. If the firmware is tested in 3 different pacemakers randomly selected from the 8592 cases, What is the probability that all 3 pacemakers will have malfunctions caused by firmware? 1) 0.0003 2) 0.0004 3) 0.0005 4) 0.0006