a roller coaster has 3 trains with 7 rows per train. Riders stand in rows of 7, for a total of 42 riders per train. The operators of the coaster recorded the number of riders on each train during a run. In the first train, 6 1/6 rows were filled. On the second train, all 7 rows were filled. On the third 4 1/2 rolls were filled. How many rows were empty on the first train?

Given are five observations for two variables, x and y. xi 1 2 3 4 5 yi 3 7 5 11 14 which of the following is a scatter diagrams accurately represents the data? what does the scatter diagram developed in part (a) indicate about the relationship between the two variables? try to approximate the relationship betwen x and y by drawing a straight line through the data. which of the following is a scatter diagrams accurately represents the data? develop the estimated regression equation by computing the values of b 0 and b 1 using equations (14.6) and (14.7) (to 1 decimal). = + x use the estimated regression equation to predict the value of y when x = 4 (to 1 decimal). =