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Chapter 13: Q 1. (page 847)
The ________ of A and B consists of all elements in either A or B or both.
Union.
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List all the combinations of 4 objects 1, 2, 3, and 4 taken 3 at a time. What is ?
If each element of a set A is also an element of a set B, we say that A is a _____ of B and write A ____B.
When the same probability is assigned to each outcome of a sample space, the experiment is said to have _____ outcomes.
In a certain lottery, there are ten balls, numbered 1, 2, 3, 4, 5, 6, 7, 8, 9, 10. Of these, five are drawn in order. If you pick five numbers that match those drawn in the correct order, you win $1,000,000. What is the probability of winning such a lottery?
What is the probability that at least 2 people have the same birthday in a group of 12 people? Assume that there are 365 days in a year.
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