The probability that a building's front door lock will jam

Last updated: 7/20/2022

The probability that a building's front door lock will jam on a random day is 5%, and the probability that the front door lock will jam and the locksmith will be out sick on a random day is 0.4%. Assuming these two events are independent, find the probability that the locksmith will be out sick on a random day. (A) 2% (B) 4.6% (C) 8% (D) 12.5%