Question

2 dice rolled simultaneously . what is the probability of getting a sum of 7 when thrown​

Answer 1

Answer:

It’s quite easy:

Either you can write all the 36 outcomes and count the number of outcomes whose sum is 7.

(1,1), (1,2), (1,3), (1,4), (1,5), (1,6),

(2,1), (2,2), (2,3), (2,4), (2,5), (2,6),

(3,1), (3,2), (3,3), (3,4), (3,5), (3,6),

(4,1), (4,2), (4,3), (4,4), (4,5), (4,6),

(5,1), (5,2), (5,3), (5,4), (5,5), (5,6),

(6,1), (6,2), (6,3), (6,4), (6,5), (6,6)

Bolded ones are favourable outcomes.

or

You just have to found for which values  x+y=7,where x,y=1,2,3,4,5 or 6  

just find out all possibilities and chose the favourable one.

Hope it helps :)