Problem 30 of 7
Interpret expected value in context: expected number of correct answers is 15 out of 20.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
explain long-run average outcome.
Hidden until you reveal it.
Interpretation must describe long-run average, not guaranteed single-trial outcome.
Enter your answer
Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Identify the expected value and its units.
2. Describe it as a long-run average over many repetitions.
3. Clarify whether it is net gain/loss or raw payout/count.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Saying the expected value must occur on every trial.