Question

Write your answer as a reduced fraction, using / for the fraction bar.A six-sided fair die is rolled 2 times in a row. Create a tree diagram to help you answer this questions. The probability of getting a 4 ONLY on the last trial is

Answer 1

5/36

Step-by-step explanation:

First, we will create the tree diagram. So, if we rolled a fair die 2 times, we will have six posibilities the first time and six posibilities the second time. Then, the tree diagram will be:

Therefore, from the tree diagram, we can see that there are 36 possible outcomes and from them only 5 options have 4 only on the last trial.

These 5 options are:

1 - 4

2 - 4

3 - 4

5 - 4

6 - 4

Then, the probability is equal to the ratio of these value, so it is equal to: 5/36