Let x be the age in years of a licensed automobile driver. Let y be the percentage of all fatal accidents (for a given age) due to speeding. For example, the first data pair indicates that 37% of all fatal accidents of 17-year-olds are due to speeding. x 17 27 37 47 57 67 77 y 37 28 19 12 10 7 5 Complete parts (a) through (e), given Σx = 329, Σy = 118, Σx2 = 18,263, Σy2 = 2832, Σxy = 4076, and r ≈ −0.957. (b) Verify the given sums Σx, Σy, Σx2, Σy2, Σxy and the value of the sample correlation coefficient r. (Round your value for r to three decimal places.). Σx= Σy=  Σx2=  Σy2=  Σxy=  r=

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Let x be the age in years of a licensed automobile driver. Let y be the percentage of all fatal accidents (for a given age) due to speeding. For example, the first data pair indicates that 37% of all fatal accidents of 17-year-olds are due to speeding.

x 17 27 37 47 57 67 77
y 37 28 19 12 10 7 5

Complete parts (a) through (e), given

Σx = 329, Σy = 118, Σx2 = 18,263, Σy2 = 2832, Σxy = 4076, and r ≈ −0.957. (b) Verify the given sums Σx, Σy, Σx2, Σy2, Σxy and the value of the sample correlation coefficient r. (Round your value for r to three decimal places.). Σx=
Σy
Σx2
Σy2
Σxy
r

 

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