medium · GMAT Quant
An automated assembly line uses three robotic arms: Alpha, Beta, and Gamma. Alpha handles 40 percent of the parts, Beta handles 40 percent, and Gamma handles 20 percent. The probability of an alignment error is 0.002 for Alpha, 0.005 for Beta, and 0.010 for Gamma.
What is the probability that a randomly selected part has an alignment error?
- 0.0048
- 0.0057
- 0.0170
- 0.0035
- 0.0060
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