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Chapter 5: Q. 5.69. (page 211)
Housing Units. Refer to 5.65. Among the events A, B, C, and D, identify the collection of events that are mutually exclusive.
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What does the probability distribution of a discrete random variable tell you?
Oklahoma State Officials. Refer to Table 5.1 on page 196.
(a). List the possible samples without replacement of size 3 that can be obtained from the population of five officials. (Hint: There are 10 possible samples.)
If a simple random sample without replacement of three officials is taken from the five officials, determine the probability that
(b). the governor, attorney general, and treasurer are obtained.
(c). the governor and treasurer are included in the sample.
(d). the governor is included in the sample.
Explain what is wrong with the following argument: When two balanced dice are rolled, the sum of the dice can be 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12, giving 11 possibilities. Therefore the probability is that the sum is 12.
Decide which of these numbers could not possibly be probabilities. Explain your answers.
How do you graphically portray the probability distribution of a discrete random variable?
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