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A student needs to get at least 50% of the questions correct in order to pass a quiz. Is this more likely to happen with

  • A student needs to get at least 50% of the questions correct in order to pass a quiz. Is this more likely to happen with a four-question quiz or a ten-question quiz? Why?

  • With a four-question quiz, what do you think is the most likely value for the number of correct questions? Posing the same question for the ten-question quiz, what would your answer be?

  • If several students took a four-question quiz and guessed randomly on each question, how many do you think they would answer correctly on average? Posing the same question for a ten-question quiz, what would your answer be?

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