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Chapter 5: Q 10. (page 246)
A, B, and C are mutually exclusive events such that and . Find .
The probability of.
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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.
Constract a venn diagram representing the event.
Part. (a) (not E).
Part. (b) (A or B)
In Exercises 5.16-5.26, express your probability answers as a decimal rounded to three places.
Housing Units. The U.S. Census Bureau publishes data on housing units in American Housing Survey for the United States. The following table provides a frequency distribution for the number of rooms in U.S. housing units. The frequencies are in thousands.
A housing unit is selected at random. Find the probability that the housing unit obtained has
(a) four rooms.
(b) more than four rooms.
(c) one or two rooms.
(d) fewer than one room.
(e) one or more rooms.
Why is probability theory important to statistics?
Roughly speaking, What is an experiment? an event?
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