BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

Standard Deviation

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Source: — Problem Solving |
Master | Next Rank: 500 Posts
Posts: 315
Joined: Thu Aug 17, 2006 10:43 pm
Thanked: 23 times

by Suyog » Wed Oct 31, 2007 3:17 pm
https://www.beatthegmat.com/viewtopic.ph ... ght=#22854
Top
Master | Next Rank: 500 Posts
Posts: 468
Joined: Sat Mar 03, 2007 10:17 pm
Thanked: 5 times

by moneyman » Wed Oct 31, 2007 9:46 pm
The Mean is 10.00 and the Sd is 0.3 and hence one SD from the mean would have values between 9.7(10-0.3) to 10.3(10+0.3). There are six values which fall under this condition. Hence 6 out of 8 would be 75%.
Maxx
Top
Post new topic Post Reply
• Page 1 of 1