![subject](/tpl/images/cats/mat.png)
Mathematics, 18.08.2020 23:01 estefanlionel8678
Let x be the size of a house (sq ft) and y be the amount of natural gas used (therms) during a specified period. Suppose that for a particular community, x and y are related according to the simple linear regression model with the following values.
ß = slope of population regression line = 0.019
a = y intercept of population regression line = -7
(a) What is the equation of the population regression line?
y = 1
b) What is the mean value of gas usage for houses with 2100 sq ft of space?
(c) What is the average change in usage associated with a 1 square foot increase in size?
(d) What is the average change in usage associated with a 100 square feet increase in size?
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 15:30
What number should be added to both sides of the equation to complete this square? x^2-10x=7
Answers: 3
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 15:30
Divide: 1573 ÷ 7 = a) 222 r5 b) 223 r6 c) 224 r5 d) 224 r3
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 17:30
Daniel bought a computer game for $25 and later sold it to thomas for a 40% profit. how much did daniel sell the computer game for?
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 18:30
Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)
Answers: 1
You know the right answer?
Let x be the size of a house (sq ft) and y be the amount of natural gas used (therms) during a speci...
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 26.02.2021 20:40
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/en.png)
English, 26.02.2021 20:40
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/en.png)
English, 26.02.2021 20:40
![question](/tpl/images/cats/istoriya.png)
History, 26.02.2021 20:40
![question](/tpl/images/cats/mat.png)
Mathematics, 26.02.2021 20:40
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 26.02.2021 20:40
![question](/tpl/images/cats/mat.png)
Mathematics, 26.02.2021 20:40
![question](/tpl/images/cats/fr.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 26.02.2021 20:40
![question](/tpl/images/cats/en.png)
English, 26.02.2021 20:40
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 26.02.2021 20:40