McJilton corporation manufactures and sells digital alarm cl

McJilton corporation manufactures and sells digital alarm clocks that are 98.5% effective. because you sometimes have major issues waking up, you buy two of these alarm clocks. these clocks are so loud that you will wake at the set time so long as at least one of them sound. what is the probability that when both alarms are set you will wake up at the set time?

Solution

So the probability is

0.985*0.985 = 0.970225