Question

What is the chance of getting 7 or 11 with 2 dice?​

Answer 1

Answer:

Step-by-step explanation:

When two dice are rolled together then total outcomes are 36 and  

Sample space is  

[ (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) ]

So, pairs with sum 1 or 2 are (1,1) i.e. only 1 pair

Total outcomes = 36

Favorable outcomes = 1

Probability of getting pair with sum 1 or 2 = Favorable outcomes / Total outcomes                                                                                                                          = 1/36

So, P(sum of 1 or 2) = 1/36.