Use the following information for following questions .
A random sample of 100 cars was taken and data were recorded on the miles per gallon (mpg) in the city
and on the highway. The mean city mpg was 28 with a standard deviation of 9.2. The mean highway mpg
was 35 with a standard deviation of 8.6. The correlation coefﬁcient between city mpg and highway mpg is
-Determine which is the correct calculation of the intercept for the linear model that predicts highway mpg from city mpg.
A)a =−28 0.888(35) =−3.08
B)a =−28 1.016(35) =−7.56
C)a =−35 0.888(28) =10.136
D)a =−35 1.016(28) =6.552

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The Answer of Use the following information for following questions .
A random sample of 100 cars was taken and data were recorded on the miles per gallon (mpg) in the city
and on the highway. The mean city mpg was 28 with a standard deviation of 9.2. The mean highway mpg
was 35 with a standard deviation of 8.6. The correlation coefﬁcient between city mpg and highway mpg is
-Determine which is the correct calculation of the intercept for the linear model that predicts highway mpg from city mpg.
A)a =−28 0.888(35) =−3.08
B)a =−28 1.016(35) =−7.56
C)a =−35 0.888(28) =10.136
D)a =−35 1.016(28) =6.552

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