Ten High-Technology Batteries Are Tested for 200 Hours Each

question 99

Multiple Choice

Ten high-technology batteries are tested for 200 hours each.One failed at 20 hours;another failed at 140 hours;all others completed the test.FR(%) is ________ and MTBF is ________.

• A)20%;880 hours
• B)10%;1980 hours
• C)20%;1760 hours
• D)20%;1000 hours
• E)80%;920 hours