• 2021-04-14
    Suppose that past history shows that 60% of college students prefer Coca-Cola®. A sample of 10,000 students is to be selected. Which of the following distributions would you use to figure out the probability that at least half of them will prefer Coca-Cola®?
  • normal distribution

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      中国大学MOOC: Some students prefer a strict teacher who tells them exactly what to do. Others prefer ____ to work on their own.

    • 1

      ________ convenience, many students prefer to use small pocket dictionaries or palmtop electronic dictionaries.

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      Many students _________ take tests. A: would rather not B: would rather not to C: would prefer not to D: would rather to not

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      The probability that a particular brand of smoke alarm will function properly and sound an alarm in the presence of smoke is 0.8. You have five such alarms in your home and they operate independently. Which of the following distributions would you use to determine the probability that all of them will function properly in case of a fire A: inomial distribution B: Poisson distribution C: oth of the above D: none of the above

    • 4

      The probability of receiving a 911 call on a university campus is the same every day. The probability of having received a 911 call on a single day does not change the probability of receiving a 911 call on any other day. Which of the following distributions would you use to determine the probability that a 911 call will be received next day?