median

[Joe Horn]

(09-13-2014 08:25 PM)Marcel Wrote:  Hi,
I am a math teacher. I know the fact that median can be found by arranging all the observations from lowest value to highest value and picking the middle one. So the first group is <= median and median < the second group.. So the Prime is OK but... why don't take the usually convention!
I will have to say at my students "Don't take your Prime to do the median" this is sad.
Marcel

Or simply have them type this once into the Define window via [Shift] [x t θ n]:

Name: med
Function: (median(M1)+median(tail(M1)))/2

From then on, they can use med() instead of median(), and get the expected answer.