→ yhliu:問資料落入指定範圍之比例. 10/20 20:27
→ joe12412:歐歐 了解了 感謝 10/20 20:34
a set of data whose histogram is bell shaped yields a mean and standard
deviation of 50 and 4,respectively.Approximately what proportion of
observation
a. are between 46 and 54
b.are between 42 and 58
c. are between 38 and 62
請問各位大大 他題目是再問甚麼阿??
不好意思 我統計才剛學~~
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※ 編輯: joe12412 來自: 140.138.223.55 (10/20 18:57)