how to plot probability density and cumulative distribution functions of four data sets

Please how can one use syntax in matlab to plot the probability density function and cumulative distribution function of these data sets. I need the graph to appear with legend : case 1, case 2, case 3, case 4. N.B: just a sample below ; Case 1= A=[101.13 101.74 ...] vs B=[90.8 98.9....] Case 2 =A=[102.3 107.7...] vs B=[67.8 98.7...] Case 3 =A=[123.4 67.6...] vs B=[98.7 90.8...] Case 4 =A=[112.3 98.8...] vs B=[102.3 103.5...] Thanks