***December 2014 - Math Level 2***

[mustafina]

<p>@theoneandonly1 @NorCalGuy11 this link explains it. the right answer was the one with only 1 bar <a href=“Can the standard deviation ever = 0?”>http://mathcentral.uregina.ca/QQ/database/QQ.09.01/karen5.html&lt;/a&gt;&lt;/p&gt;