We use cookies to improve your experience on our site and to show you relevant advertising. By browsing this website, you agree to our use of cookies. Learn more   

AtoZmath.com
Support us
(New) All problem can be solved using search box
I want to sell my website www.AtoZmath.com with complete code
 
 
Home What's new College Algebra Games Feedback About us
Algebra Matrix & Vector Numerical Methods Statistics Operation Research Word Problems Calculus Geometry Pre-Algebra
Home > Statistics calculators > Regression Lines
Regression Lines
1. Regression line equations

1. Find the equation of two regression lines, also estimate
Find the equation of regression line equations and correlation coefficient from the following data.
X28414038353346323633
Y30343134302628312631

2. Find Correlation Coefficient from two Regression line equations
The regression equation of two variables are 5y = 9x - 22 and 20x = 9y + 350. Find the means of x and y. Also find the value of r.

3. Find Regression line equations using mean, standard deviation and correlation correlation (r)
The following information is obtained form the results of examination
Marks in StatsMarks in Maths
Average39.547.5
S.D.10.816.8
The correlation coefficient between x and y is 0.42. Obtain two regression line equations and estimate y for x = 50 and x for y = 30.

4. Find Regression line equations from `sum x, sum y, sum x^2, sum y^2, sum xy, n`
The following information is obtained for two variables x and y. Find the regression equations of y on x.
`sum xy` = 3467`sum x` = 130`sum x^2` = 2288
n = 10`sum y` = 220`sum y^2` = 8822
2. Regression line equations for bivariate grouped data
Find Regression Lines
Class-Y
Class-X		90-100100-110110-120120-130
50-554752
55-6061074
60-65612107
65-703863


Share this solution or page with your friends.
 
 
Home What's new College Algebra Games Feedback About us
 
Copyright © 2026. All rights reserved. Terms, Privacy
 
 

.