Another post, yay~ OuO; And yet again, we are learning about standard deviation, except this time it has a TWIST. For example, I looked online (in the achive statistics for Edmodo) and copied down crime statistics, just for a little practice. I have listed below exactly what it was that I investigated~
Standard deviation σ - Crime statistics for Alaska, USA from 1990-2000. -Burglary-
5,582 (- 5164.5) = 417.5
5,170 (- 5164.5) = 5.5
4,893 (- 5164.5) = 271.5
4,848 (- 5164.5) = 316.5
5,055 (- 5164.5) = 109.5
5,118 (- 5164.5) = 46.5
4,276 (- 5164.5) = 888.5
4,098 (- 5164.5) = 1066.5
3,787 (- 5164.5) = 1377.5
3,899 (- 5164.5) = 1265.5
+___________________
=5765/10 =
√576.5 = σ
Here is most of the data I searched and sumed up. I actually like Standard Deviation now. Its like, not easy, but not hard ♥~
Besides this, another thing I haven't quite grasped yet, but I do enjoy is the Mean Absolute Deviation. Its still kind of hard to understand, but, eh. I like it =u=;
Anywho, theres my reflection for today~ I hope thats enough o3o
Peace, Love, and Happiness forever,
Karï~
I love the idea that you reflected on the stuff that you did that day in class. It actually puts a real value on it when you can display it to the world. I do think the calculations were for the mean absolute deviation (minus the square rooting at the end) and not for standard deviation. If I'm not mistaken, you must square your result before adding, dividing, and square rooting.
ReplyDeleteI do think that you did cross two concepts and make up your own. I wonder if it is called something else when you approach this way. :0)