Regression line - correlation regression analysis, Operation Research

Assignment Help:

Regression Line

The line  of regression  is the  line  which give the best  estimate  to the  values  of one  variable  for any  specific  values  of other  variable.

For two  variables  on regression  analysis there  are two  regression lines. One line as  the regression of X and Y and the other  for regression of Y and X , these  two regression lines  show  the average  relationship  between  the two  variables. The regression  line  of Y on X gives  the most  probable  values  of Y for given values of X  and the  regression  lien of X and Y gives  the most  probable  values  of X for  given  values  of Y.

For  perfect correlation  positive  or negative i ,e, for r= ± the  two lines  coincide i, e,  we will  find only  one straight line. If  r= 0 i, e,  both the variance  are independent then the two  lines will  cut each  other are  a right  angle. In  this case  the two  lines will  be parallel  to x and  y axes. (see figure).


Related Discussions:- Regression line - correlation regression analysis

Advantages of standard deviation - measure of dispersion, Advantages of S...

Advantages of Standard  deviation a.Standard  deviation is based on all the observations and is rigidly  defined. b.It is  amenable to algebraic  treatment  and possesses

Annotated bibliography - report writing presentation , Annotated bibliograp...

Annotated bibliography   In  this  bibliography each  is followed  by a one sentence or  one  paragraph  description of the content  of the work  cited. For  example Bndypad

Linear programmimg, #questionA paper mill produces two grades of paper viz....

#questionA 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 grad

Simplex method of LP, MAX: 150 X1 + 250 X2 Subject to: 2 X1 + 5 X2 = 200 - ...

MAX: 150 X1 + 250 X2 Subject to: 2 X1 + 5 X2 = 200 - resource 1 3 X1 + 7 X2 = 175 - resource 2 X1, X2 = 0 2. How many units of resource 1 are cons

Inventory Control Model, 1. A local university purchases exercise books to ...

1. A local university purchases exercise books to give to their students. Instead of a fixed unit cost, their supplier quotes the following discount pricing: Order quantity Unit P

Game theory, if there were n workers and n jobs there would be

if there were n workers and n jobs there would be

Panel sampling - sampling decisions, Panel Sampling Here the initial  s...

Panel Sampling Here the initial  samples are down  on random  basis  and information  from  these is collected  on regular  basis. Itis  semi permanent sample where members may

Linear programming., Q3. Solve the following Linear Programming Problem usi...

Q3. Solve the following Linear Programming Problem using Simple method. Maximize Z= 3x1 + 2X2 Subject to the constraints: X1+ X2 4 X

Determination of effectiveness measures, Determination of effectiveness Mea...

Determination of effectiveness Measures: Effectiveness measure is a measure of success of a model in representing a problem and providing a solution. It is the connecting link

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