Stats - Question 1

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Source: — Data Sufficiency |

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by papgust » Wed Jun 02, 2010 11:10 pm
Set X = {-10,-8,0,6,7}
Current Median is 0
Current Range is 17

The question in simplified way is "What are the 2 dropped elements?"

A.
Median of the set remains the same after dropping 2 elements.
1. If you remove (-10,7) from the set, the median is 0.
2. If you remove (-8,6) from the set, the median is 0.
Two possibilities of element set. Insufficient.

B. I think you understand why B is sufficient. If not, let me know.