A correlation coefficient is a(n): a. independent variable that is used in a correlational study. b. numerical indicator of the strength and direction of a relationship between two factors. c. index of the practical rather than the statistical significance of research findings. d. numerical indicator of the statistical significance of the findings in a particular research study.

b. numerical indicator of the strength and direction of a relationship between two factors.

Step-by-step explanation:

Correlation coefficient:

The correlation coefficient between two variables is how closely they are related.

For example, in vectors with high correlation coefficient, they are similar, while with low coefficient, they are significantly different. So the correct answer is given by option b.

$4034.40

the perimeter of the field is the sum of the lengths of the four sides:

47 yd + 158 yd + 47 yd + 158 yd = 410 yd

the cost of 3 ft (1 yd) of fence is 3×$3.28 = $9.84.

so the cost of jake's wood perimeter fance is

(410 yd) × ($9.84 /yd) = $4034.40