The correlation coefficient (r) between the number of volunteers x and the number of bags of trash collected y is 0.654.

What percent of the variation in the number of bags of trash collected can be explained by differences in the number of volunteers?

(Points : 1)
34.6%
42.8%
57.2%
65.4%

Question

The correlation coefficient (r) between the number of volunteers x and the number of bags of trash collected y is 0.654.

 What percent of the variation in the number of bags of trash collected can be explained by differences in the number of volunteers? 

 (Points : 1)  
       34.6%
        42.8%
        57.2%
        65.4%

amistre64 · Answer

"The value of r squared is typically taken as “the percent of variation in one variable explained by the other variable,” or “the percent of variation shared between the two variables.”" http://www.dmstat1.com/res/TheCorrelationCoefficientDefined.html

amistre64 · Answer

refresh to get rid of the <?> parts if needed

anonymous · Answer

what?

amistre64 · Answer

what about the information dont you understand?