Determine the Pearson product-moment correlation coefficient for the following data. x 1 10 9 6 4 3 2 y 8 4 6 5 7 7 10

UnattemptedQuestion 1Expand PreviousNext   The data below was collected from manufacturer advertisements of their vehicles' horsepower and highway gas mileage (mpg.). Use this data to answer the following questions. x 158 250 340 350 390 190 220 y 33 28 15 17 11 35 42 1. Find the p-value to determine if there is a linear correlation between horsepower and highway gas mileage (mpg).  If there is a linear correlation, write the correlation coefficient below if there is a linear correlation, write the regression equation below.  Using the data shown above, predict the the highway gas mileage (mpg) for a car that has a horsepower of 225 If there is a linear correlation, what percentage of variation in highway gas mileage (mpg) can be explained by horsepower?

How does multiplying each score by a (positive) constant affect the value of the correlation? The correlation changes sign. The correlation does not change. The correlation decreases. The correlation increases.

Need the first 3

Here is a bivariate data set. x y 64 101 79 18 61 96 78 55 56 8 78 -7 60 26 76 7 99 55 Find the correlation coefficient and report it accurate to four decimal places. r =   A good correlation calculator is found at Correlation Calculator

Compute the correlation coefficient. x 20 25 16 4 00 8 31 36 y 40 35 -10 13 22 22 -1 1 The correlation coefficient is = . Round the answer to three decimal places as needed.

The data below are the final exam scores of 10 randomly selected calculus students and the number of hours they slept the night before the exam. Calculate the linear correlation coefficient. Round to three decimal places. Hours, x Scores, y OA. 0.654 OB. 0.847 O C. 0.761 O D. 0.991 7 74 9 89 6 69 12 97 6 75 8 87 8 94 9 10 99 99 7 80 …….