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9.17 Data were collected for a random variable Y as a function of another random variable...

9.17 Data were collected for a random variable Y as a function of another
random variable X. The recorded (x, y) pairs are as follows:
(3, 2) , (5, 3) , (6, 4) , (8, 6) , (9, 5) , (11, 8)
a. Plot the scatter diagram for these data.
b. Find the linear regression line of y on x that best fits these data.
c. Estimate the value of y when x=15.

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