Problem 33 of 7
Compute conditional probability from a two-way table: row total r, cell c.
Hints
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
use row or column denominator.
Hidden until you reveal it.
Choose row or column denominator according to the condition.
Enter your answer
No answer yet
Correct
Your answer is equivalent to the expected form.
Solution
Walkthrough
Walkthrough shown
Full solution stays hidden until you ask for it.
1. Parse the condition after given or vertical bar.
2. Find the matching row or column total.
3. Divide the target cell by that denominator.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Using grand total for conditional table probability.