Question

The chance that an office sprinkler system will fail 20%; chance that the alarm system will fail is 10%; and a chance that both will fail is 4% what is the chance that either the sprinkler or the alarm system will fail ?

Answer 1

Answer:

26

Step-by-step explanation:

Answer 2

Answer: A. 26%

Step-by-step explanation:

26% use the addition rule. P(Sprinkler or alarm) = 0.20 + 0. 10 - 0.04  = 0.26.