Historically, reinforced concrete structures used externally bonded steel plates to add strength and support. Recently, fiber reinforced polymer (FRP) plates have been used instead of steel plates because of their superior properties. In the article "Interfacial Bond Strength Characteristics of FRP and RC Substrate” (J. of Compos. Constr., 2012: 35–43), investigators developed a method to mathematically model bond strength between a carbon FRP and a concrete substrate. For each of 15 carbon FRP-concrete samples, the article reported the maximum transferable load (kN) calculated by the model and compared this with the corresponding maximum transferable load (kN) as measured in the laboratory. The data is given here: Calc: Meas: 14.2 13.7 16.0 13.7 16.5 15.4 15.9 15.4 18.8 16.2 17.9 16.3 13.1 13.7 15.4 16.2 Calc: Meas: 14.3 13.4 21.4 21.4 17.6 14.8 8.6 7.4 10.3 7.4 11.9 14.7 18.7 18.2 a. Construct a scatterplot of the data. Does it seem to be the case that, in general, when the measured load is low (high), the calculated load is also low (high)? For each sample, are the two variables relatively close in value?