statistics professor administered an exam to four different classes and obtained the average grades per

Find the missing part. use an improper fraction for your answer.

Which term best describes the association between variables a and b? no association a negative linear association a positive linear association a nonlinear association a scatterplot with an x axis labeled, variable a from zero to ten in increments of two and the y axis labeled, variable b from zero to one hundred forty in increments of twenty with fifteen points in a positive trend.

Need on this geometry question. explain how you did it.