Problem 2 of 7
Compute conditional probability from counts: table has 50 total, 20 in B, 8 in A and B.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
divide favorable outcomes within given condition.
Hidden until you reveal it.
Denominator must be the count inside the given condition.
Enter your answer
Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Identify the condition after the vertical bar or in the phrase given that.
2. Count outcomes satisfying the condition.
3. Count outcomes satisfying both the target and condition, then divide.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Using the whole sample-space total as denominator when a condition is given.