What is the r-value of the following data to three decimal places?
A. -0.811
B. 0.811
C. 0.901
D. -0.901

Answer:
-0.9007 it would be D. if I'm right
Step-by-step explanation:
X Values
∑ = 34
Mean = 6.8
∑(X - Mx)2 = SSx = 140.8
Y Values
∑ = 54
Mean = 10.8
∑(Y - My)2 = SSy = 164.8
X and Y Combined
N = 5
∑(X - Mx)(Y - My) = -137.2
R Calculation
r = ∑((X - My)(Y - Mx)) / √((SSx)(SSy))
r = -137.2 / √((140.8)(164.8)) = -0.9007
Meta Numerics (cross-check)
r = -0.9007