00 Bell 11:03 AM 48%) Done Practice_Midterms.pdf The nest three qundions (17 to

Question

00 Bell 11:03 AM 48%) Done Practice_Midterms.pdf The nest three qundions (17 to 19) efer to the folloing place of sidece and the time Y (in ) it ta than to t to thiy i""ported tha 75% d the var ation in time can be around br as "peas 17. What is the vale of the corselaticn betwee dice d t (A) 0250 (B) 0.5 (C7) 06 S (D) 0750 (E) 0363 WThat is the ale of the idal or thi stude (A)-28 28 -10.9 (D) 109 (E 108 values wold change I) i (A) 1 only (B) II only (C) 1 and only (D) 1 and 111 ely ) II and 111 only

Explanation / Answer

17) coefficient of determination, r^2 = 0.75,
correlation coefficient, r = sqrt(0.75) = 0.8660 (Option B)

18) For X = 5 ,Y_cap = 2.3 + 1.7*5 = 10.8

y = 8 minutes
residual = 8 - 10.8 = -2.8

19) Option A

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