概念問題 解答

確率統計　集合と理論

問題9の解答

1～6の内容を確認する．

1. ${\displaystyle \text{A}\cap \text{B}=\left\{8,1\right\}}$

2. ${\displaystyle \text{A}\cup \text{B}=\left\{1,3,4,6,7,8,9\right\}}$

3. ${\displaystyle \overline{\text{A}}\cap \text{B}=\left\{4,7,9\right\}}$

4. ${\displaystyle \text{A}\cap \overline{\text{B}}=\left\{3,6,1,8,2,5\right\}}$

5. ${\displaystyle \overline{\text{A}\cap \text{B}}=\left\{2,3,4,5,6,7,9\right\}}$

6. ${\displaystyle \overline{\text{A}}\cap \overline{\text{B}}=\left\{2,5\right\}}$

以上より，答えは 6 となる．