Importance of normal distribution , Operation Research

Assignment Help:

Importance of Normal Distribution

Normal distribution  plays  a very  important  role in  statistical  theory  and in  particular  in sampling theory. It has  been  found  that:

a.Data  obtained  from  psychological  physical  and biological measurements  approximately follow normal  distribution .I. Q  scores heights and  weights  of individuals  diameters of machines  parts lengths of tobacco leaves are example of  measurements which are normally distributed  or nearly no.

b. Distribution like binomial  Poisson  etc can be  approximated to normal distribution,

If the number  of trials  nis   indefinitely large  and  neither  p nor q is very   small than binomial  distribution  tends  of normal  distribution.

 If the  parameter  m is  indefinitely large ( i, e, if m ) then  Poisson distribution  tends to normal distribution.

c.For large  samples  any  statistic  ( i ,e,  sample mean s, d, etc)  approximately  follows  normal  distribution  and such  it can be  studied with  the help  of normal  curve.

d.Normal  curve  is used  to find confidence  limits  of the  population  parameters.

e.Normal  distribution  are largely applied  in statistical quality  control  in industry  for  finding  control  limits.

f.The theory  of errors  of observation  in physical  measurements  is based  on normal  distribution.


Related Discussions:- Importance of normal distribution

Linear programming, #questiA paper mill produces two grades of paper viz X ...

#questiA 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 pa

Operations function - information system, The Operations Function has alway...

The Operations Function has always relied heavily on information for its smooth running. During this course information has been introduced as one of the five inputs to the convers

Scope., what is the scope of operational research in india ? explain with t...

what is the scope of operational research in india ? explain with the job names.

Determine the required factors of production in a company, 1)  Provide a de...

1)  Provide a description of the required factors of production, grouping them according to whether the factors of production are a) Fixed and hence unlikely to vary much accord

OR, Models in OR

Models in OR

Theoretical framework, Ask questiAvatars are virtual characters that can be...

Ask questiAvatars are virtual characters that can be used as representatives of a company that is using the Internet as a distribution channel. For instance, avatars can be used as

What do you understand by the term queueing theory, Question: (a) (i) W...

Question: (a) (i) What do you understand by the term ‘queueing theory'? Give two real life examples to illustrate your answer. (ii) Outline the five components involved in

Calculate, A paper mill produces two grades of paper viz X and Y. Because o...

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 in

MB0048, A paper mill produces two grades of paper viz., X and Y. Because of...

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

Maps, Maps, Atlases and Globes: Maps illustrate the distribution of ma...

Maps, Atlases and Globes: Maps illustrate the distribution of many things that occur on the surface of the earth. Information is presented by the use of a vast array of symbol

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