Question

A hospital has three emergency power generators that operate when there is a power outage. the probability that a generator fails to operate is 0.2 and the three generators are independent. what is the probability that none of the generators operate properly during a power outage

Answer 1

The probability that none of the generators operate properly during a power outage is 0.008

There are 3 generators in total that does are not independent and a probability of 0.2 that a generator will fail to operate. 

In this case, we will raise the given probability of 0.2 to the power of 3 to find the answer.

Look at the given solution below:

.2^3 = 0.008