Chapter 2: Problem 146
Describe the Venn diagram for two sets with common elements. How does the diagram illustrate this relationship?
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Chapter 2: Problem 146
Describe the Venn diagram for two sets with common elements. How does the diagram illustrate this relationship?
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Let $$ \begin{aligned} U &=\\{1,2,3,4,5,6,7\\} \\ A &=\\{1,3,5,7\\} \\ B &=\\{1,2,3\\} \\ C &=\\{2,3,4,5,6\\} \end{aligned} $$ Find each of the following sets. \((A \cap B) \cup(A \cap C)\)
A pollster conducting a telephone poll of a city's residents asked two questions: 1\. Do you currently smoke cigarettes? 2\. Regardless of your answer to question 1, would you support a ban on smoking in all city parks? a. Construct a Venn diagram that allows the respondents to the poll to be identified by whether or not they smoke cigarettes and whether or not they support the ban. b. Write the letter b in every region of the diagram that represents smokers polled who support the ban. c. Write the letter \(\mathrm{c}\) in every region of the diagram that represents nonsmokers polled who support the ban. d. Write the letter d in every region of the diagram that represents nonsmokers polled who do not support the ban.
Describe the Venn diagram for two equal sets. How does this diagram illustrate that the sets are equal?
In Exercises 97-104, let
$$
\begin{aligned}
U &=\\{x \mid x \in \mathbf{N} \text { and } x<9\\} \\
A &=\\{x \mid x \text { is an odd natural number and } x<9\\} \\
B &=\\{x \mid x \text { is an even natural number and } x<9\\} \\
C &=\\{x \mid x \in \mathbf{N} \text { and } 1
Make Sense? Determine whether each statement makes sense or does not make sense, and explain your reasoning. Even if I'm not sure how mathematicians define irrational and complex numbers, telling me how these sets are related, I can construct a Venn diagram illustrating their relationship.
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