On an exam on probability concepts, Mary had an answer of 13/8 for one problem. Explain how she knew that this result was correct

You need to provide more information here. e.g., what was the question that mary answered?

To understand how Mary determined that the answer 13/8 was correct, we need to consider the details of the problem she was likely solving. Probability concepts involve determining the likelihood of an event occurring.

1. Identify the problem: The first step is to understand what specific problem or question Mary was answering. Probability problems can cover a wide range of scenarios, such as rolling dice, drawing cards, or selecting objects from a set.

2. Understand the context: Once we know the problem, it's important to understand the context in which it is presented. This includes details like the number of available options, any given conditions, and the specific task or event being asked about.

3. Determine the possible outcomes: Next, we need to identify all the possible outcomes of the problem. These are the different scenarios or results that can occur. It could be the number on a die, the color of a drawn card, or any other relevant options in the given context.

4. Calculate the favorable outcomes: After identifying the possible outcomes, we need to find the number of favorable outcomes. These are the specific scenarios or results that are considered successful, relevant, or desired according to the problem's requirements.

5. Apply the probability formula: Mary might have used the probability formula to calculate the likelihood of the event occurring. The general formula is:
Probability (P) = Number of Favorable Outcomes / Number of Possible Outcomes.

6. Simplify or convert the answer if necessary: Depending on the problem, the result might need to be simplified or converted into a different form. In the case of 13/8, Mary might have simplified it by dividing both the numerator and denominator by their greatest common divisor until no further simplification is possible.

By following these steps, Mary likely determined that the answer of 13/8 was correct based on the given problem's context and her application of probability concepts.