Fifty defibrillators are tested for 48 hours per machine. Of all the machines tested, 2 experience malfunctions during the test. What is the failure rate for the machines?
A) 0.004
B) 0.042
C) 0.01
D) 0.008
E) 0.0008

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The Answer of Fifty defibrillators are tested for 48 hours per machine. Of all the machines tested, 2 experience malfunctions during the test. What is the failure rate for the machines?
A) 0.004
B) 0.042
C) 0.01
D) 0.008
E) 0.0008

Fifty Defibrillators Are Tested for 48 Hours Per Machine