Answer: 0.1
Step-by-step explanation:
Since the number cube is rolled twice , the sample space is 36 , that is the total number of possible outcomes is 36.
The success criteria for a sum of 9 appearing are:
3/6 , 4/5 , 5/4 , 6/3
Therefore , the probability of a sum of 9 appearing= [tex]\frac{n(sum of 9)}{Total sample space}[/tex]
= 4/36
= 1/9
=0.111111...
