Well... The probability of choosing 2 kittens from the litter is 2/6 which reduced to 1/3 which means 33.33% = 34%. There are 15 ways... Easy.. All u have to do is name those kittens... For EX: i will name them A, B,C, D, E, & F. You can get AB, AC, AD, AE, AF, BC, BD,BE,BF, CD,CE,CF, DE,DF, &EF