How does plotting data on a scatter plot help to determine if a relationship exists between bivariate data? Objective The student will be able to: a) construct a scatter plot, b) interpret the constructed scatter plot to determine if a relationship exists, c) if a relationship exists, construct a line of correlation and determine if the relationship is positive or negative. Background The Wright brothers chose the Kitty Hawk location for many reasons. Based upon their journal entries they had three requirements for choosing a location for their test flights: seclusion, sand, and wind. When the Duration: 90 Minutes.