Example 3. For the variables x and y, the regression equations are given as :7x - 3y - 18 = 0 and 4x – y – 11 = 0(i) Find the arithmetic means of x and y.%3D(ii) Identify the regression equation of y on x. Also find b and bxyyx

Answered: Image /qna-images/answer/52fa01b1-fe49-475e-a3d7-1f3f99ebee99.jpg

Answered: Example 3. For the variables x and y,…

Algebra and Trigonometry (MindTap Course List)

4th Edition

ISBN:9781305071742

Author:James Stewart, Lothar Redlin, Saleem Watson

Publisher:James Stewart, Lothar Redlin, Saleem Watson

Chapter1: Equations And Graphs

Section1.CT: Chapter Test

Problem 8CT

See similar textbooks

Similar questions

Cholesterol. The age, x, and LDL cholesterol level, y, of two men are given by the points (18,69) and (27,122) . Find a linear equation that models the relationship between age and LDL cholesterol level.
Solve for X in the Equation, given A=-2-1103-4 and B=0320-4-1 a X=3A2B b 2X=2AB c 2X+3A=B d 2A+4B=-2X
The table shows the amounts of crude oil (in thousands of barrels per day) produced by a certain country and the amounts of crude oil (in thousands of barrels per day) imported by the same country for seven years. The equation of the regression line is y=-1.196x+16,255.09. Complete parts (a) and (b) below. Produced, x Imported, y (a) Find the coefficient of determination and interpret the result (Round to three decimal places as needed.) How can the coefficient of determination be interpreted? The fraction of the variation in the amount of the variation is unexplained and is due to other factors or to sampling error. (b) Find the standard error of estimates, and interpret the result. thousands of barrels per day (Round to three decimal places as needed.) How can the standard error of estimate be interpreted? The standard error of estimate of the amount of 5,827 9,349 for 5,701 5,590 5410 5.216 5,105 5,035 9,107 9,654 10,059 10,105 10,198 10,003 BULLM that can be explained by the…
Analysis of the data from 25 mothers indicates that an infant's birth weight (g), y, can be estimated by a mother's weight (kg), x, using the regression equation y =31x +1501. If a mother's weight is 70 kg, the infant's birth weight can be estimated as ________ g.
Answer from a-d
Suppose the equation of the regression line for the number of emails a person recieves at a particular sales company is given by y = 4 + 4.x. Where y is based on the number of accounts the person has, c. If a person has 16 accounts, find the number of emails they will recieve. Number of emails:
Suppose the equation of the regression line for the number of emails a person recieves at a particular sales company is given by y = 7 + 18 · x. Where y is based on the number of accounts the person has, x. If a person has 15 accounts, find the number of emails they will recieve. Number of emails:
Q1: Given the regression equation Y=40 - 4X. Find the value of the dependent variable Y for X =0,1,2,3,4,…,10 and plot the graph of X and Y on actual graph paper; also interpret it.
For the regression equation Ŷ = –2X + 6, what can be determined about the correlation between X and Y? a. The correlation definitely will be positive. b. The correlation will be relatively large and positive c. The correlation definitely will be negative. d. The correlation will be relatively large and negative.
FAL The money raised and spent (both in millions of dollars) by all congressional campaigns for 8 recent 2-year periods are shown in the table. The equation of the regression line is y = 0.959x + 15.575. Find the coefficient of determination and interpret the result. Money raised, x Money spent, y 472.7 446.1 652.5 681.3 742.1 747.2 Find the coefficient of determination and interpret the result. 2 (Round to three decimal places as needed.) 785.7 779.4 1025.2 954.5 1207.4 1008.1 933.1 1165.1 769.1 725.3
Given the regression model Y=15+7X what will be the value of Y when X is 0?
For a linear regression, what is another name for the term b in the general linear equation Y = bX + a? Select one: a. the X-intercept b. the slope c. the beta factor d. the Y-intercept

SEE MORE QUESTIONS

Recommended textbooks for you

Algebra and Trigonometry (MindTap Course List)

Algebra

ISBN:

9781305071742

Author:

James Stewart, Lothar Redlin, Saleem Watson

Publisher:

Cengage Learning

College Algebra

Algebra

ISBN:

9781305115545

Author:

James Stewart, Lothar Redlin, Saleem Watson

Publisher:

Cengage Learning

Elementary Algebra

Algebra

ISBN:

9780998625713

Author:

Lynn Marecek, MaryAnne Anthony-Smith

Publisher:

OpenStax - Rice University

Algebra and Trigonometry (MindTap Course List)

Algebra

ISBN:

9781305071742

Author:

James Stewart, Lothar Redlin, Saleem Watson

Publisher:

Cengage Learning

College Algebra

Algebra

ISBN:

9781305115545

Author:

James Stewart, Lothar Redlin, Saleem Watson

Publisher:

Cengage Learning

Elementary Algebra

Algebra

ISBN:

9780998625713

Author:

Lynn Marecek, MaryAnne Anthony-Smith

Publisher:

OpenStax - Rice University

Linear Algebra: A Modern Introduction

Algebra

ISBN:

9781285463247

Author:

David Poole

Publisher:

Cengage Learning

Glencoe Algebra 1, Student Edition, 9780079039897…

Algebra

ISBN:

9780079039897

Author:

Carter

Publisher:

McGraw Hill

Algebra: Structure And Method, Book 1

Algebra

ISBN:

9780395977224

Author:

Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Publisher:

McDougal Littell

SEE MORE TEXTBOOKS

Example 3. For the variables x and y, the regression equations are given as 7x- 3y - 18 = 0 and 4x - y- 11 = 0 (i) Find the arithmetic means of x and y. and b (ii) Identify the regression equation of y on x. Also find b