Question

The table below shows all of the possible outcomes for rolling two six-sided number cubes.

What is the probability of rolling an even number first and an odd number second?
1 over 9
1 over 6
One-fourth
One-half

Answer 1

Answer:

The probability of rolling an even number first and an odd number second is 1/4

Answer 2

Given :  

The table below shows all of the possible outcomes for rolling two six-sided number cubes.  

A table with 36 possible outcomes.  

To Find :  What is the probability of rolling an even number first and an odd number second?

1/9        1 over 9

1/6          1 over 6

1/4      One-fourth

1/2   One-half

Solution:

                        1          2            3            4         5         6

            1         1,1        1,2          1,3          1,4        1,5      1,6  

            2        2,1      2,2          2,3         2,4       2,5      2,6  

            3        3,1      3,2          3,3         3,4        3,5      3,6  

            4        4,1       4,2          4,3        4,4       4,5      4,6  

            5        5,1        5,2         5,3        5,4       5,5      5,6  

            6        6,1       6,2          6,3       6,4       6,5     6,6  

an even number first and an odd number second

= { (2 , 1) , ( 2 ,3 ) , ( 2 , 5)  , ( 4 , 1) , ( 4 ,3 ) , ( 4 , 5) , ( 6 , 1) , ( 6 , 3) , ( 6 ,5)}

Total 9 case

probability of rolling an even number first and an odd number second = 9/36

= 1/4

One-fourth

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