Problem 129 of 7
Compute probability with multiple categories selected: debate team of 3 with 1 freshman from 5 and 2 sophomores from 6.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
multiply combinations across categories.
Hidden until you reveal it.
Multiply combinations across required categories and divide by total selections.
Enter your answer
Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Count favorable selections within each category.
2. Multiply category counts for favorable outcomes.
3. Divide by total selections of the same size.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Adding category counts instead of multiplying independent category selections.