The least-squares regression model yˆ=−3.4+5.2x and correlation coefficient r=0.66 were calculated for a set of bivariate data with variables x and y . Which of the following is closest to the proportion of the variation in y that cannot be explained by the explanatory variable?

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

How do i make someone brainliest? (if you answer me, i might be able to make you brainliest! )

1c) the number 131 is a term in the sequence defined by the explicit rule f(n)=5n-4. which term in the sequence is 131? 2a) write the first four terms of the function f(n)=n^2-1 2b) what is the 10th term of the sequence defined by the explicit rule f(n)=n^2-1 2c) the number 224 is a term in the sequence defined by the explicit rule f(n)=n^2-1. which term in the sequence is 224?