A job consists of a series of three tasks. Task 1 is performed correctly 98% of the time, task 2 is performed correctly 99% of the time, and task 3 is performed correctly 97% of the time. What is the reliability of this job?
A) 91.27%
B) 94.11%
C) 97.00%
D) 98.00%
E) 99.00%

Question

Quizplus · Accepted Answer

The reliability of the job is the probability that all three tasks are performed correctly. To find this probability, we multiply the individual probabilities of each task: 0.98 x 0.99 x 0.97 = 0.945411. 
So the reliability of the job is 94.5411%, which is closest to option B (94.11%).

A Job Consists of a Series of Three Tasks