a newspaper aticle said studentscarry heavy backpacks. one middle school class decided to check whether the claim was true. each studentestimated the weight of his or her backpackand then weighed it. the scatter plot shows the estimated and actual backpack weights for each student. the dot plots show the distribution for each variable with their mean. a. use the statistics in the box to describe the spreadof the estimated backpack wweights. b. use he statistics in the box to describe the spread of the actualbackpack weights. c. estimate a correlation coefficient for the scatter plot. is it closest to -1, -0.5, 0, 0.5, or 1? explain your choice