Problem 217 of 7
Correct the probability-decision analysis error: A student calculates the probability of drawing a red card from a deck, given it's a face card, using 52 as the denominator.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
catch expected-value, denominator, independence, and interpretation mistakes.
Hidden until you reveal it.
Correction must address expected value, denominator, independence, or interpretation.
Enter your answer
Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Identify the decision-analysis mistake.
2. State the correct probability or expected-value method.
3. Explain how the recommendation changes or what must be recomputed.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Only replacing the final recommendation.