HP48GX Statistical Function

[Thomas Klemm]

(09-21-2018 11:12 PM)thenewpotato Wrote:  First of all, how might I calculate the median or quartiles on a set of data?

(09-22-2018 02:56 AM)Jlouis Wrote:  but resuming digit TEACH on the display, press ENTER, then press the VAR key and the submenu will appear, now press EXAM, PRGS and finally MEDIA.

There's another program %TILE in the EXAMPLES that can be used with data in a list:

Code:

« SWAP SORT DUP SIZE 1 + ROT 100 / * → p
  « DUP p FLOOR GET SWAP p CEIL GET + 2 /
  »
»

• Q1: « 25 %TILE »
• Q2: « 50 %TILE »
• Q3: « 75 %TILE »
  

Examples:

Taken from Quartile.

{ 6 7 15 36 39 40 41 42 43 47 49 }

• Q1: 15
• Q2: 40
• Q3: 43
  

{ 7 15 36 39 40 41 }

• Q1: 11
• Q2: 37.5
• Q3: 40.5
  

But this might not be exactly what you expect.

Kind regards
Thomas