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56. Five observations taken for two variables follow. x 6 11 15 21 27 y, 6 9 6 17 12 a. Develop a scatter diagram for these data. b. What does the scatter diagram indicate about a relationship between x and y? c. Compute and interpret the sample covariance. d. Compute and interpret the sample correlation coefficient

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math   Statistics-And-Probability   
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2 1 12 8 se、 3 3 6 36 8 121 225 136 [F | 35干 1941 |289 27 12 | 324 |チ29 |144 96 1552 36 2 1 30 906 80x50 5万 181^,9-160능 1552--(스으) 415

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