[解題] 高中數學 統計
1.年級:高二或高三
2.科目:數學
3.章節:統計
4.題目:http://imgur.com/kbLMAMl

5.想法:
看題目覺得是二項分布
但後面的選項看起來他代的公式是抽樣的根號(p(1-p)/n)
我想到的解釋方法是 因為是題目要求比率 所以全部直接除以n
請問這樣的解釋方法不知道是不是正確的@@
因為解答全部都是用抽樣誤差來看 讓我看不太懂-.-
想請問 抽樣誤差指的就是那個區間的大小嗎@@?
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