For a set of data, r = 0.27. which is true about the correlation of the variables? the variables have no correlation. the variables have a strong positive correlation. the variables have a weak negative correlation. the variables have a weak positive correlation.

 The variables have a weak positive correlation

Since r > 0, the correlation is positive. It's a weak correlation because r is closer to 0 than it is to 1.

Abit confused about what you mean, but i think you might be referring to slope intercept form: y = mx + bin that case b, or the y intercept is already given.(0,-1)find the slope by using the formulay2 - y1/x2 - x1the final slope will be 4/2, equivalent to 2.now your equation should look like thisy = 4/2x -1sorry if this didn’t you out!