Suppose that you are given the following results. Find the
correlation coefficient of the data.
sx = 2.555, sy = 15.400, b = 4.050
a) -0.672
b) -0.488
c) 0.336
d) 0.672
e) 0.488
f) None of the above
Suppose that you are given the following results. Find the correlation coefficient of the data. sx...
for 1 Sx soo and 2. Suppose that X and Y are continuous and jointly distributed by the function f(x,y) = 1 Sy S. PAY ATTENTION TO THE SUPPORT REGION. a. Find the marginals for X and Y. b. Find the conditional probability density functions g(xly) and hylx). C. Determine whether or not X and Y are independent based on your results above. d. Calculate P(X+Y<5 Y = 3). e. Find E[X] f. Find E[Y] 8. Find E[XY] h. Find...
Suppose you have 17 data points and you calculate the sample correlation coefficient and find that r = .45. Can you be 95% confident that a linear relation exists between the variables? If so, is the relation positive or negative? Justify you answer
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2. Let the following data be given where X is the independent variable and Y is the dependent variable Find the correlation coefficient r a. a and B,onpfrom the sample for the model: b. Estimate +tx and the actual data Y where ε is the random error between the fitted model f by Y write the linear equation P=" dr-h Predict the value of P when x = 8 c. d. 2. Let the following data be given where X...
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17. Explain how you found the linear correlation coefficient. Find the value of the linear correlation coefficient r. Points: 5 17) The paired data below consist of the test scores of 6 randomly selected students and the number of hours they studied for the test. Hours 5 10 4 6 10 9 Score 64 86 69 86 59 87 D) 0.224 C) 0.678 B) -0.678 A) -0.224 Explain how you found the linear correlation coefficient.
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You need to determine the correlation coefficient for a data set. The sums of the variables are given below. n=13 sum of x=60 sum of y=891 sum of xy=4620 sum of x^2=346 sum of y^2=65451 Find the correlation coefficient. Round the answer to the thousandths place.
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