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

Asilkworm winds its cocoon out of one long silk fiber. to make silk thread, 3 to 10 of these silk fibers are unwound from their cocoons and combined into aa single thread with a typical length of 300 yards. choose a reasonable number of silk fibers in a thread write an equation to find the total length of the silk fibersused in 300 yards of the thread

On a piece of paper, graph y< x-1. then determine which answer choicematches the graph you drew.13. z3. 2(3.290-1)

Over the course of a month, a person's weight decreases. what type of relationship is this? a. positive relationship