Methods of calculation of standard deviation , Operation Research

Assignment Help:

Methods  of calculation of standard deviation

a.Calculation of Standard  Deviation  - Individual Series: There  are two methods of calculating standard  deviation in an individual  observation or series

a.Deviation Taken from Actual Mean: This method is adopted when  the mean  is a whole  number of an even number . the   followings are the steps.

1.Find out the  actual  mean  of the series ( ) .

2.Find out  the deviation of each  value  from the mean ( X -)

3.Square the deviations and  take the total  of squared devotions∑ X2.

4. Divide the total (∑X2) by the number  of observations. The square  root  of the  quotient is standard deviation. Thus  apply the  following  formula:

                               = √∑X2/ N  or √ ∑ (X- )/ N

 


Related Discussions:- Methods of calculation of standard deviation

Linear Programming, A paper mill produces two grades of paper viz., X and Y...

A paper mill produces two grades of paper viz., X and Y. Because of raw material restrictions, it cannot produce more than 400 tons of grade X paper and 300 tons of grade Y paper i

Assumption for students test , Assumption for  students Test a.The p...

Assumption for  students Test a.The parent population from  which the samples is  drawn in normal. b.The sample observations  are random  i ,e the given  sample is  drawn

Simple line graphs , Simple Line Graphs a. Simple  Histogram A simpl...

Simple Line Graphs a. Simple  Histogram A simple histogram  is a techniques  used  plotting  a time  series on the graph paper. The data are arranged according to  the time

Replacement theory.., a pipe lis dur for rpair,the repair would cost 10000 ...

a pipe lis dur for rpair,the repair would cost 10000 and it would last for 3 years.alternatively a new pipe line can be purchase at 30000 for 10 years.assuming 10% depriciation rat

Macroeconomic environment in which the business operates, Provide a descrip...

Provide a description of the macroeconomic environment in which the business operates noting: a) The overall 'stability' of the political system/government of the country in whi

Survey method, This method involves a systematic and comprehensive study...

This method involves a systematic and comprehensive study of a particular community organization group etc, with a view to the analysis of a social problem and the presen

Strategies and od intervention techniques, QUESTION 1 Change strategies...

QUESTION 1 Change strategies and OD intervention techniques follow from diagnosis. An inappropriate intervention due to a faulty diagnosis may be very costly to an organization

Vogel approximation methods, This method is more  systematic and orderly th...

This method is more  systematic and orderly than least cost method. Here penalties for each column and row of the transportation table are determined, and the row  or  column with

Scope, With practical example

With practical example

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd