Problem 169 of 7
Correct the multiplication-rule error: A student treats dependent events as independent without justification.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
catch failure to update denominator, reversed condition, and independent/dependent confusion.
Hidden until you reveal it.
Correction must address denominator update, condition direction, path multiplication, or independence assumption.
Enter your answer
Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Identify whether the process is independent or dependent.
2. Choose matching multiplication rule terms.
3. Correct the product or tree-path calculation.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Only changing final arithmetic without fixing the probability structure.