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

Calculation of standard deviation - discrete series, Calculation  of Stand...

Calculation  of Standard Deviation - Discrete Series   There are three methods for  calculating  standard  deviation  in discrete series": a. Actual Mean Methods: It inc

Chi square test goodness of fit- hypothesis testing, Chi Square  Test Good...

Chi Square  Test Goodness of Fit Chi square test  can be used to find out  how well the  theoretical distribution fit  with the  empirical distribution  of observed distribut

form of t- distribution - hypothesis testing , Form of t- Distribution ...

Form of t- Distribution 1. The students  t - distribution  like the  normal  distribution has bell shaped frequency  curve which is symmetrical. The only  parameter which  det

Linear regression, regression line drawn as y=c + 1075x, when x was 2, and ...

regression line drawn as y=c + 1075x, when x was 2, and y was 239, given that y intercept was 11. calculate the residual

Operation Research, 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

Tied ranks equal or repeated rank, Tied Ranks Equal or Repeated Rank W...

Tied Ranks Equal or Repeated Rank When  two or more  items  have equal values  it is  difficult  to give ranks  to them. In  that case  the items are given  the average of the

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

Area under standard normal curve, Area under Standard Normal Curve The...

Area under Standard Normal Curve The graph  of the  standard  normal  curve y = p(z) with  different percentages areas is  shown here. Since p(z) is  a probability  distributi

Explain the competitive environment of a company, 1) Provide an overall des...

1) Provide an overall description of the business and the competitive environment in which it operates.  You should describe: a) what type of business it  is (e.g. retail, manuf

Linear programming, b. A paper mill produces two grades of paper viz., X an...

b. 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 pape

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