8. Average Household Size The table number y of people per household for 1010 1050 1060

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter4: Writing Linear Equations
Section4.5: Analyzing Lines Of Fit
Problem 31E
icon
Related questions
icon
Concept explainers
Question
8. Average Household Size The table lists the average
number y of people per household for various years x.
1940
1950
1960
1970
y
3.67
3.37
3.33
3.14
1980
1990
2000
2010
y
2.76
2.63
2.62
2.58
C....aa. ILS Caaue D. a
(a) Make a scatter diagram of the data.
(b) Decide whether the correlation coefficient is positive,
negative, or zero.
(c) Find a least-squares regression line that models
these data and graph the line. What is the correlation
coefficient?
(d) Estimate the number of people per household in 1975,
and compare it with the actual value of 2.94.
Transcribed Image Text:8. Average Household Size The table lists the average number y of people per household for various years x. 1940 1950 1960 1970 y 3.67 3.37 3.33 3.14 1980 1990 2000 2010 y 2.76 2.63 2.62 2.58 C....aa. ILS Caaue D. a (a) Make a scatter diagram of the data. (b) Decide whether the correlation coefficient is positive, negative, or zero. (c) Find a least-squares regression line that models these data and graph the line. What is the correlation coefficient? (d) Estimate the number of people per household in 1975, and compare it with the actual value of 2.94.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Knowledge Booster
Correlation, Regression, and Association
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Algebra
ISBN:
9781680331141
Author:
HOUGHTON MIFFLIN HARCOURT
Publisher:
Houghton Mifflin Harcourt
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Algebra and Trigonometry (MindTap Course List)
Algebra and Trigonometry (MindTap Course List)
Algebra
ISBN:
9781305071742
Author:
James Stewart, Lothar Redlin, Saleem Watson
Publisher:
Cengage Learning