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#+TITLE: Statistics

#+AUTHOR: FOSSEE

#+DATE

#+EMAIL:     info@fossee.in

#+DESCRIPTION: 

#+KEYWORDS: 

#+LANGUAGE:  en

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* Outline 

 - Doing statistical operations in Python  

   - Summing set of numbers

   - Finding there mean

   - Finding there Median

   - Finding there Standard Deviation 

* Data set

  - A;015163;JOSEPH RAJ S;083;042;47;00;72;244;;; 

  The following are the fields in any given line.

   - Region Code which is 'A'

   - Roll Number 015163

   - Name JOSEPH RAJ S

   - Marks of 5 subjects: -- English 083 -- 

     Hindi 042 -- Maths 47 --

     Science 35 -- Social 72

   - Total marks 244

* Question

  - In the given file football.txt at path /home/fossee/football.txt , 

    one column is player name,second is goals at home 

    and third goals away.

    - Find the total goals for each player

    - Mean home and away goals

    - Standard deviation of home and away goals 

* Solution

#+begin_src python

  L=loadtxt('/home/amit/football.txt',usecols=(1,2),

            delimiter=',')

  sum(L,1)

  mean(L,0)

  std(L,0)

#+end_src python

* Summary 

  - sum

  - mean

  - median

  - std