Mathematics · Statistics
A data set of 27 different numbers has a mean of 33 and a median of 33. A new data set is created by adding 7 to each number in the original data set that is greater than the median and subtracting 7 from each number in the original data set that is less than the median. Which of the following measures does NOT have the same value in both the original and new data sets?
- 1Standard deviation✓
- 2Sum of the numbers
- 3Mean
- 4Median
Correct answer
Standard deviation
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