Practice Quiz

Lean Bronze

Category - Continuous Improvement

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Standard deviation helps to determine the variability of some processes. Which choice explains how the standard deviation of a process would be calculated?
  1. The square root of the most frequent observation occurrence in a data set.
  2. The square root of the arithmetic mean value of the data set.
  3. The square root of the sum of squared standard deviations about a population mean divided by the number of observations in a population.
  4. The square root of the difference between the largest data range value and the smallest data value.
Explanation
Answer: C - The standard deviation of a process would be calculated by taking the square root of the sum of squared standard deviations about a population mean divided by the number of observations in a population.
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