median

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nisha.menon294: Senior | Next Rank: 100 Posts; Posts: 44; Joined: Sat Apr 10, 2010 8:33 am

by nisha.menon294 » Wed Apr 21, 2010 3:15 am

i dont understand why is the answer 2

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Source: Beat The GMAT — Data Sufficiency | Wed Apr 21, 2010 3:15 am

ajith: Legendary Member; Posts: 1275; Joined: Thu Sep 21, 2006 11:13 pmFollowed by: 2 members; Location: Arabian Sea; Thanked: 125 times

by ajith » Wed Apr 21, 2010 3:19 am

nisha.menon294 wrote:i dont understand why is the answer 2

Median is the middle value of the numbers sequenced in ascending or descending order
in this case

15,10, 5 -1, -2 , -5

There are two middle values -1 and 5
Median is the average of these two (-1+5)/2 = 2

Always borrow money from a pessimist, he doesn't expect to be paid back.

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