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he values of x and their corresponding values of y are shown in the table below ...
Jul 4, 2024
he values of x and their corresponding values of y are shown in the table below x 0 1 2 3 4 y 2 3 5 4 6 Find the regression equation of the line y = a + bx b) Estimate the value of y when x = 10.
Solution by Steps
step 1
To find the regression equation of the line y=a+bx y = a + bx , we first need to perform a linear regression on the given data points: (0,2),(1,3),(2,5),(3,4),(4,6)(0, 2), (1, 3), (2, 5), (3, 4), (4, 6)
step 2
Using the Asksia-LL calculator, we input the data points and obtain the linear regression model: y=0.9x+2.2 y = 0.9x + 2.2
step 3
The regression equation is y=0.9x+2.2 y = 0.9x + 2.2
step 4
To estimate the value of y y when x=10 x = 10 , we substitute x=10 x = 10 into the regression equation: y=0.9(10)+2.2 y = 0.9(10) + 2.2
step 5
Simplifying the expression: y=9+2.2=11.2 y = 9 + 2.2 = 11.2
Answer
The regression equation is y=0.9x+2.2 y = 0.9x + 2.2 . When x=10 x = 10 , y y is estimated to be 11.2.
Key Concept
Linear Regression
Explanation
Linear regression is a statistical method used to model the relationship between a dependent variable and one or more independent variables by fitting a linear equation to observed data.
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