Find two lines of regressions from the following Data: Age of husband : 25, 21, 22.5, 26.3, 35.7, 20.8, 22.9, 40.6, 25.2, 18.1 Age of wife: 16.3, 15.1, 20.9, 17.0, 22.6, 14.3, 18.9, 21.0, 15.6, 14.8 If regression lines are : 25x –5y = 20 ; 25.5x -10y = 30 find the following: a. mean value of x & y ; b. regression coefficients; c. coefficients of correlation d. standard deviation of y

Find two lines of regressions from the following Data: Age of husband : 25, 21, 22.5, 26.3, 35.7, 20.8, 22.9, 40.6, 25.2, 18.1 Age of wife: 16.3, 15.1, 20.9, 17.0, 22.6, 14.3, 18.9, 21.0, 15.6, 14.8 If regression lines are : 25x –5y = 20 ; 25.5x -10y = 30 find the following: a. mean value of x & y ; b. regression coefficients; c. coefficients of correlation d. standard deviation of y

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

Find two lines of regressions from the following Data:

Age of husband : 25, 21, 22.5, 26.3, 35.7, 20.8, 22.9, 40.6, 25.2, 18.1

Age of wife: 16.3, 15.1, 20.9, 17.0, 22.6, 14.3, 18.9, 21.0, 15.6, 14.8

If regression lines are :

25x –5y = 20 ; 25.5x -10y = 30

find the following:

a. mean value of x & y ;

b. regression coefficients;

c. coefficients of correlation

d. standard deviation of y

Definition Definition Relationship between two independent variables. A correlation tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.

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