連續隨機變數
Quiz
•
Other
•
University
•
Hard
童小霞 童小霞
Used 2+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列何者不屬於連續隨機變數分配?
常態分配
均等分配
指數分配
二項分配(n很小或p很微小)
Answer explanation
二項分配當n很大或p不是很微小時會趨近於常態分配
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
連續隨機分配通常可以由什麼圖型來導出?
圓餅圖
長條圖
相對次數直方圖
折線圖
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
觀察值的個數是無限且不可數的資料稱為連續資料,下列何者不是連續資料?
營業收入
溫度
飲料容量
100隻手機不良品的數量
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
關於連續隨機變數的機率分配何者錯誤?
可由相對直方圖導出
縱軸為相對次數
橫軸為一個單位組距
直方圖的總面積大於等於1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
關於連續隨機變數的機率密度函數的敘述何者錯誤?
指連續隨機變數任意兩點間變量發生的機率分佈
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
關於常態分配的敘述何者為非?
次數分配曲線像一個鐘型
對稱分散於平均數的兩邊
數值絕大部份集中於離平均數的1個標準差內
為一般社會及自然界現象最常見的情形
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
關於常態機率密度函數何者為非?
平均數是中心
變動常態曲線平均數不會改變常態曲線的形狀
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