Problem 33 of 7
Use the multiplication rule for dependent events without replacement: select two seniors from 8 seniors and 12 juniors without replacement.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
update probability after first event.
Hidden until you reveal it.
Update the second probability after the first event occurs.
Enter your answer
Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Compute probability of the first event.
2. Update available outcomes after the first event.
3. Multiply by the conditional probability of the second event.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Using the original denominator for every stage.