Problem 168 of 7
Correct the fairness-analysis error: A student says a lottery is fair because numbers are drawn randomly, but some numbers are intentionally excluded from the pool.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
catch wrong sample space, unequal probabilities, and simulation misreadings.
Hidden until you reveal it.
Correction must address sample space, unequal probabilities, or simulation 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 mistaken fairness criterion.
2. Compute or compare actual outcome probabilities.
3. State the corrected fairness conclusion.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Saying random automatically means fair.