Hi Allen,
There is a small error in the median explanation at your web
http://ri.essortment.com/medianmiddlest_rtiy.htm
Your note says:
"In the data set {2, 3, 4, 5}, the median value falls between the 2nd and 3rd
value. We add these two values (2 + 3) and divide by 2. The median value of
this data set is 2.5."
The median value should be (3+4)/2 = 3.5
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