Question 1192333
A pair of dice is to be rolled. (Give your answers as fractions.)
The possible sums are 2 to 12 inclusive ---> 11 possible sums.
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(a) Find the probability of the sum P(2) of the two dice.
Both must be 1 ---> 1/11
(b) Find the probability of the sum P(3) of the two dice.
Call them A & B:
A = 1 & B = 2 or vice versa --> 2 possibles ---> 2/11
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(c) Find the probability of the sum P(4) of the two dice.
A   B
1   3
2   2
3   1

--> 3/11
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(d) Find the probability of the sum P(5) of the two dice.
A   B
1   4
2   3
3   2
4   1

--> 4/11
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(e) Find the probability of the sum P(6) of the two dice.
A   B
1   5
2   4
3   3
4   2
5   1

--> 5/11
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(f) Find the probability of the sum P(7) of the two dice.
(g) Find the probability of the sum P(8) of the two dice.
(h) Find the probability of the sum P(9) of the two dice.
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Do the rest the same way.