A Service Requires Three Steps

question 105

Multiple Choice

A service requires three steps. At each step there is the chance that something will go wrong. The reliabilities of each step are 0.70, 0.90, and 0.98. What is the reliability of the total service?

• A) less than or equal to 0.55
• B) greater than 0.55 but less than or equal to 0.60
• C) greater than 0.60 but less than or equal to 0.65
• D) greater than 0.65