The fraction of the variability in fuel economy is accounted for by the engine size is 59.91%.
Given that, r= -0.774.
To solve such problems we must know about the fraction of the variability in data values or R-squared.
<h3>What fraction of the variability in fuel economy is accounted for by the engine size?</h3>
The fraction by which the variance of the dependent variable is greater than the variance of the errors is known as R-squared.
It is called so because it is the square of the correlation between the dependent and independent variables, which is commonly denoted by “r” in a simple regression model.
Fraction of the variability in data values = (coefficient of correlation)²= r²
Now, the variability in fuel economy = r²= (-0.774)²
= 0.599076%= 59.91%
Hence, the fraction of the variability in fuel economy accounted for by the engine size is 59.91%.
To learn more about the fraction of the variability visit:
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interpretation: x/2+y/6-z/4
Input:
x/2 + y/6 - z/4
Alternate form:
1/12 (6 x + 2 y - 3 z)
Real root:
z = 2 x + (2 y)/3
Root:
Answer:
52 pages
Step-by-step explanation:
1/4 x 4= 1
13 x 4=52
Answer:
Step-by-step explanation:
9 Sunday newspapers, and 5 Saturday newspapers.
