[HH,HT,TH,TT][1,2,3,4,5,6]
7878
There are 72 permutations of two dice and one coin.
Sample space: {hhh,hht,hth,htt,ttt,tth,tht,thh} 8 possible outcomes
It is 0.722... recurring.
It is 1/4.
The sample space of a standard six sided die rolled twice, or two dice rolled once (they are the same) is [11, 12, 13, 14, 15, 16, 21, 22, 23, 24, 25, 26, 31, 32, 33, 34, 35, 36, 41, 42, 43, 44, 45, 46, 51, 52, 53, 54, 55, 56, 61, 62, 63, 64, 65, 66].
The sample space for tossing a coin twice is [HH, HT, TH, TT].
7878
75%
It is 0.25
36
Sample space: {hhh,hht,hth,htt,ttt,tth,tht,thh} 8 possible outcomes
There are 72 permutations of two dice and one coin.
It is 0.722... recurring.
It is 1/4.
The number of combinations - not to be confused with the number of permutations - is 2*21 = 42.
25%