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Chapter 5: Q 5.1. (page 200)
Roughly speaking, What is an experiment? an event?
An experiment is a procedure with a predetermined set of outcomes.
An experiment's event is a collection or set of its results.
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In Exercises 5.16-5.26, express your probability answers as a decimal rounded to three places.
Murder Victims. As reported by the Federal Bureau of Investigation in Crime in the United States, the age distribution of murder victims between 20 and 59 years old is as shown in the following table.
A murder case in which the person murdered was 59 years old is selected at random. Find the probability that the murder victim was
(a) between 40 and 44 years old, inclusive.
(b) at least 25 years old, that is, 25 years old or older.
(c) between 45 and 59 years old, inclusive.
(d) under 30 or over 54.
Poker Chips. A bowl contains 12 poker chips-3 red, 4 white, and 5 blue. If one of these poker chips is selected at random from the bowl, what is the probability that its color is
(a) red? (b). red or white? (c). not white?
Dice. Refer to the image below and for each of the following events, list the outcomes that constitute the event in words
When one die is rolled, following outcomes are possible :
Suppose that a simple random sample is taken from a finite population in which each member is classified as either having or not having a specified attribute. Fill in the following blanks.
(a) If sampling is with replacement, the probability distribution of the number of members sampled that have the specified attribute is a distribution.
(b) If sampling is without replacement, the probability distribution of the number of members sampled that have the specified attribute is a distribution.
(c) If sampling is without replacement and the sample size does not exceed % of the population size, the probability distribution of the number of members sampled that have the specified attribute can be approximated by a distribution.
Answer true or false to each statement and explain your answers.
(a) For any two events, the probability that one or the other of the events occurs equals the sum of the two individual probabilities.
(b) For any event, the probability that it occurs equals 1 minus the probability that it does not occur.
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