MTB > %pp_disc c11 c12 c13;
SUBC> data 4 16 8 12;
SUBC> store c14.

Probability distribution of P1 and P2:

(Rows and columns are expressed in percentage format.)
  
  ROWS: PER_1     COLUMNS: PER_2
 
          20       25       30       35       40
  
 20  0.01963  0.08089  0.20265  0.03573  0.03979
 25  0.02275  0.09376  0.23489  0.04141  0.04612
 30  0.00782  0.03223  0.08075  0.01424  0.01586
 35  0.00111  0.00456  0.01143  0.00201  0.00224
 40  0.00052  0.00216  0.00542  0.00095  0.00106
 
  CELL CONTENTS --
             PROB:DATA