30 heating units designed for use in NASA space shuttles normally operate for 1500 hours each. Three units failed du the metrics below Note You must mention the unit of the final answer for each metric. If you do not, points will be deducted. Furthermor 1-FR(%) 2- FR(N) 3-MTBF 4- If a typical trip lasts 73 days, what is the failure rate per trip? hree units failed during a trip. The first one failed after 400 hours. The second one failed after 500 hours. The third one failed after 850 hours Base ated Furthermore che fannot moment 30 heating units designed for use in NASA space shuttles normally operate for 1500 hours each. Three units failed du the metrics below Note You must mention the unit of the final answer for each metric. If you do not, points will be deducted. Furthermor 1-FR(%) 2- FR(N) 3-MTBF 4- If a typical trip lasts 73 days, what is the failure rate per trip? hree units failed during a trip. The first one failed after 400 hours. The second one failed after 500 hours. The third one failed after 850 hours Base ated Furthermore che fannot moment