hard · GRE Quant
A list of 9 distinct integers has an arithmetic mean of 20 and a range of 40. Each of the 9 integers is then increased by 10%. Quantity A: The standard deviation of the new list of 9 values Quantity B: The standard deviation of the original list of 9 integers
- Quantity A is greater.
- Quantity B is greater.
- The two quantities are equal.
- The relationship cannot be determined from the information given.
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