A CD drive produced by a certain company has a 1% chance of encountering disc-read errors. If it is tested for 200 read operations, what is your best estimate about how many times it will fail?
A. 0
B. 2
C. 3
D. 5
E. 10
The number of times that the CD will fail is the product of the numbers it was tested and the percentage that it would fail. This is, (200 times) x (0.01) = 2 It is estimated that the CD will fail twice. The answer is letter B.
