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A machine shop has 100 drill presses and other machines in constant use. The probability that a machine will become inoperative during a given day is 0.002. During some days no machines are inoperative, but during some days, one, two, three or more are broken down. What is the probability that fewer than two machines will be inoperative during a particular day?
Brightness
The perception of how luminous an object appears, measured in lumens or subjective visual assessment.
Purity
The quality or state of being free from contamination, adulteration, or imperfection; often associated with moral or ethical cleanliness.
Wavelength
The gap between one peak of a wave and the next, particularly in sound waves or electromagnetic waves.
Subliminal
Pertaining to stimuli or psychological processes that occur below the threshold of conscious awareness.
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