Exam 2: Introduction to Probability

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When assigning subjective probabilities,use experience,intuition,and any available data.

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True

When the results of experimentation or historical data are used to assign probability values,the method used to assign probabilities is referred to as the

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Revised probabilities of events based on additional information are

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B

Three applications for admission to a local university are checked to determine whether each applicant is male or female.The number of sample points in this experiment is

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Draw a Venn diagram and label appropriately to show events A,B,their complements,intersection,and union. ​

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If 50 of 250 people contacted make a donation to the city symphony,then the relative frequency method assigns a probability of .2 to the outcome of making a donation.

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A list of all possible outcomes of an experiment is called

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The intersection of A and Ac is the entire sample space.

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In the set of all past due accounts,let the event A mean the account is between 31 and 60 days past due and the event B mean the account is that of a new customer.The complement of A is

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The probability of at least one head in two flips of a coin is

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Events A and B are mutually exclusive.Which of the following statements is also true?​

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An experiment consists of four outcomes with P(E1)= 0.2,P(E2)= 0.3,and P(E3)= 0.4.The probability of outcome E4 is

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Which of the following statements is(are)always true?

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In the set of all past due accounts,let the event A mean the account is between 31 and 60 days past due and the event B mean the account is that of a new customer.The intersection of A and B is

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Of the last 100 customers entering a computer shop,25 have purchased a computer.If the classical method for computing probability is used,the probability that the next customer will purchase a computer is

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Which of the following is not a proper sample space when all undergraduates at a university are considered?

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Compare these two descriptions of probability: 1)a measure of the degree of uncertainty associated with an event,and 2)a measure of your degree of belief that an event will happen. ​

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A method of assigning probabilities that assumes the experimental outcomes are equally likely is referred to as the

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The range of probability is

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A graphical device used for enumerating sample points in a multiple-step experiment is a

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