Which value can be added to the set without changing its mean? start set 4 comma 10 comma 14 comma 18 comma 22 comma 22 end set

The set has a sum of 90 and 6 values, so its mean is 90 ÷ 6 = 15. To keep the mean unchanged when adding one value, add the current mean, 15. Therefore, the correct choice is 15.

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