1. The problem involves finding intersections and unions of sets P, Q, X, and Y based on the Venn diagram values.
2. Recall the definitions:
- Intersection $A \cap B$ is the set of elements common to both $A$ and $B$.
- Union $A \cup B$ is the set of elements in $A$, or $B$, or both.
3. Given values from the Venn diagram:
- $P = \{5,6,9,2\}$
- $Q = \{12,6,9,10\}$
- $X = \{4,2,9,10\}$
- $Y = \{8\}$ (outside all circles)
4. Calculate each:
**a) $P \cap Q$**: Elements common to $P$ and $Q$ are $6$ and $9$.
**b) $P \cup Q$**: Combine all unique elements in $P$ and $Q$:
$$\{5,6,9,2,12,10\}$$
**c) $X \cap Q$**: Elements common to $X$ and $Q$ are $9$ and $10$.
**d) $X \cup Q$**: Combine all unique elements in $X$ and $Q$:
$$\{4,2,9,10,6,12\}$$
**e) $Y \cap Q$**: $Y$ is outside all circles, so no overlap with $Q$:
$$\emptyset$$
**f) $P \cap Q \cap X$**: Elements common to all three sets is $9$.
5. Check your probability statements:
- $0.7 = 0.5 + 0.2 - P(A \cap B)$ implies $P(A \cap B) = 0$ is correct.
- $P(A \cup B) = 0.7 + 0.2 - 0.15 = 0.75$ is correct.
- $0.9 = 0.3 + P(B) - 0$ implies $P(B) = 0.6$ is correct.
Final answers:
- a) $\{6,9\}$
- b) $\{2,5,6,9,10,12\}$
- c) $\{9,10\}$
- d) $\{2,4,6,9,10,12\}$
- e) $\emptyset$
- f) $\{9\}$
Set Operations D97D7C
Step-by-step solutions with LaTeX - clean, fast, and student-friendly.