Which answer is the best estimate of the correlation coefficient for the variables in the scatter plot?
view image
−0.99
−0.5
0.5
0.99

Question

22-02-2024
Mathematics

Answered

Which answer is the best estimate of the correlation coefficient for the variables in the scatter plot?
view image
−0.99
−0.5
0.5
0.99

Answer :

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sqdancefan sqdancefan · Answer 1 · 2024-02-23T00:47:22-05:00

Answer:

(a) -0.99

Step-by-step explanation:

You want an estimate of the correlation coefficient of points that nearly lie on a line with negative slope.

Sign

The points tend downward as X increases. This means the sign of the correlation is negative. (Eliminates choices C and D.)

Degree

The points nearly lie on a line, or lie on two nearly parallel lines. This means their degree of correlation is very high (near 1). (Eliminates choice B)

The best estimate of the correlation coefficient is -0.99, choice A.

Which answer is the best estimate of the correlation coefficient for the variables in the scatter plot? view image −0.99 −0.5 0.5 0.99

Answer :

Sign

Degree

Other Questions

Which answer is the best estimate of the correlation coefficient for the variables in the scatter plot?
view image
−0.99
−0.5
0.5
0.99