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The ordered array below represents the number of vitamin supplements sold by a health food store in a sample of $16$ days.

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$1$

Question $3$

$0\mathrm{.}5pts$

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$19,19,20,20,22,23,25,26,27,30,33,34,35,36,38,41$

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Note: For this sample, the sum of the values is $448,$ and the sum of the squared differences between each value and the mean is $812.$

The arithmetic mean of the number of vitamin supplements sold in this sample is

Write your answer as a whole number.

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