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What are the variance and standard deviation

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1. A CPU manufacturing company knows, based on the machines working at maximum productivity, that 90% of the CPU's coming off the line meet quality standards.  The quality control inspector pulls 25 CPU's off the line to test. What is the probability that more than 20 will meet quality standards. Based on this probability, would you shut down production? Why or why not?

2. Based on the problem above what is the expected number of CPU's out of the 25 that should meet quality standards? What are the variance and standard deviation?

Reference no: EM132124268

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