Question 567840
drawing a sum of 7 on 2 fair 6 sides dice looks like the probability is equal to 1/6.
there are 6 pairs that can have the sum of 7 out of 36 pairs total.  that simplifies to 1/6.
the pairS are (1,6), (2,5), (3,4), (4,3), (5,2), (6,1).


drawing a spade is 13/52 which can be reduced to 1/4.
there are 4 suits in the deck and each of them has 13 cards (12 face plus an ace).


drawing a queen given it's a face card is 4/48 which reduces to 1/12.
4 suits = 52 minus 4 aces = 48.
there are 4 queens in the deck.


drawing a red card is 26/52 which reduces to 1/2.
2 suits are red and 2 suits are black.


rolling a 4, 5, or 6 on 1 fair sided dice is 3/6 which reduces to 1/2.
1 fair die can be 1, 2, 3, 4, 5, or 6.   


looks like it's the last 2 that have the same probability.