Percentage Table for Suit Distribution of Outstanding Cards

2 cards will split          1-1        52%                              3 cards will split             2-1        78%
                              
                                 2-0        48%                                                                  3-0        22%

4 cards will split          3-1        50%                              5 cards will split            3-2        68%

                                 2-2        40%                                                                  4-1        28%
          
                                 4-0        10%                                                                  5-0          4%

6 cards will split         4-2        48%                              7 cards will split            4-3        62%

                                3-3        36%                                                                  5-2        31%

                                5-1        15%                                                                  6-1          6%

                                6-0        1%                                                                   7-0          1%

(all percentages are rounded to whole numbers for convenience)

Note: remember the general principle – an odd number of cards are likely to divide as evenly as possible, but an even number of cards will probably not divide evenly (except that 2 cards are slightly more likely to split 1-1 than 2-0)