Multiple choice six-sigma green-belt

Arithmetic average of a set of values is known as

  1. Median

  2. Standard Deviation

  3. Mode

  4. Mean
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D Correct answer
Explanation

The mean (arithmetic average) is calculated by summing all values in a dataset and dividing by the count of values. It's the most common measure of central tendency. The median is the middle value, mode is the most frequent value, and standard deviation measures spread.

AI explanation

The arithmetic mean (average) of a set of values is calculated by summing all the values and dividing by the count of values — this is precisely what 'Mean' refers to in statistics. Median is the middle value when the data is sorted, not an average of all values. Mode is the most frequently occurring value in the data set. Standard Deviation measures the spread or dispersion of values around the mean, not the average itself. Since only 'Mean' matches the definition of arithmetic average given in the question, it is the correct term.

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