The IRIS data file (posted on the D2L) contains information about 150 cases, four variables F1, F2, F3, F4, and their associated class label (last column in the datafile): setosa, virginica, and petosa.

Using R, draw a matrix scatter plot that shows the pair-wise relationships among the variables and discuss if there is any relationship among these variables.

Using R, draw another matrix scatter plot but now with the class variable selected for the marks and discuss if any of the scatters show a separation among the three classes.

Using R, draw the histograms for the four variables and interpret their distribution in terms of the shape, center, and spread.