The tree diagram shows the sample space of two-digit numbers that can be created using the digits 9,7, 1, and 8. What is the probability of choosing a number from the sample space that contains both 7 and 8?

The probability of selecting a number that contains 7 and 8 is 1/8
Explanation:There are 16 samples given.
The probability of selecting a number that contains 7 and 8 is 2/16 = 1/8