Tell whether the following statement is correct; if it is not correct, explain the problem. 60 of the voters were in favor of Issue 1 . That means 40 of them must have opposed it..
Q. 2Tell whether the following statement is correct; if it is not correct, explain the problem. If the probability of a single birth resulting in a boy is .51, then the probability of it resulting in a girl is also .51..
Q. 3Which of the following is not an example of a statement based on a personal probability?
a. Based on his credentials and experience, I believe this candidate has a high chance of being successful here..
b. I read in a study that 98 of the patients who received this vaccine suffered no side effects, so my chances of developing side effects are very small..
c. We believe beyond a reasonable doubt that the defendant is guilty..
d. All of the above are statements based on personal probability.
Q. 4Which of the following statements is not true regarding personal probabilities?
a. They often take relative frequencies of similar events into account.
b. They are based on unique situations that are not likely to be repeated.
c. We could each assign a different personal probability to the same event.
d. All of the above are true statements regarding personal probabilities.
Q. 5Which of the following is an example of using the personal probability interpretation of probability?
a. Buying a lottery ticket every week and observing whether it is a winner.
b. Observing the percentage of time that all of the prices ring up correctly when you visit a certain store each week to do your shopping.
c. Deciding that your football team has a high chance of winning their next game.
d. All of the above are examples of using the personal probability interpretation.
Q. 6What is one caution you should observe when encountering personal probabilities that are reported in the media?
Q. 7Name two restrictions on personal probabilities, from a statistical standpoint.
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