A survey was given to sophomores at a university and one of the questions asked was What is the probability that you will leave school before you graduate? The answer to this question for an individual student is an example of
a. a relative frequency probability based on long-run observation.
b. a relative frequency probability based on physical assumptions.
c. a probability based on measuring a representative sample and observing relative frequencies that fall into various categories.
d. a personal probability.
Question 2
Which of the following is an example of a relative frequency probability based on measuring a representative sample and observing relative frequencies of possible outcomes?
a. According to the late Carl Sagan, the probability that the earth will be hit by a civilization-threatening asteroid in the next century is about 0.001 .
b. If you flip a fair coin, the probability that it lands with heads up is .
c. Based on a recent Newsweek poll, the probability that a randomly selected adult in the US would say they oppose federal funding for stem cell research is about 0.37 .
d. A new airline boasts that the probability that its flights will be on time is 0.92, because 92 of all flights it has ever flown did arrive on time.
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