01 points | Previous Answers MStatCC9 20.E.025. My Notes Ask You Charlene takes

Question

01 points | Previous Answers MStatCC9 20.E.025. My Notes Ask You Charlene takes a quiz with 10 multiple-choice questions, each with five answer choices. If she just guesses independently at each question, she has probab 0.20 of guessing right on each. Use simulation to estimate Charlene's expected number of correct answers. (Simulate 20 repetitions using line 122 of this t of random digits. Let 00-19 be a correct guess and 20-99 be an incorrect guess) .3 eBook My Notes Ask Your -/1 points MStatcc9 20.E.028 What is a secret, at leastko naive gámblers, is that in the real world, a casino does much better than expected values suggest. In fact, casinos keep a bit ov 20% of the money gamblers spend on roulette chips. That's because players who win keep on playing. Think of a player who gets back exactly 96% of each

Explanation / Answer

As there are 10 questions and 5 options for each she has 20% chance of getting a correct answer

Hence, 20% of 10 is 2

So the expected number of correct answers is 2

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