
測量學03(測量數學)
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Bocheng Lin
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
機率密度函數中的曲線與橫軸所涵蓋的面積稱為甚麼?
機率
平均值
標準差
變異數
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下何者是常態密度分配曲線的特性?
利用較精良儀器、觀測愈謹慎,常態分配曲線愈趨向中央
不論如何,常態分配曲線保持系統性鐘型形狀
不同組觀測量之相對精密度可由比較其常態分配曲線得知
以上皆是
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在測量取樣時,樣本數與預估的參數間具有甚麼關係?
樣本數越多,預估的參數越準
樣本數越少,預估的參數越準
無關聯
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
系統誤差應如何改正?
增加觀測次數
多加檢核與練習
小心校正儀器或餘施測後加以計算改正
改良測量方法
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
何者不是偶然誤差的特性?
在一定觀測條件下,太大的誤差不會出現
絕對值相等的正誤差與負誤差其出現機率相等
絕對值小的誤差一定比絕對值大的誤差出現機率小
當觀測次數無限大時,偶然誤差的平均值會等於零,也就是數學期望值為零
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以精密度與精確度而言此圖表示甚麼?
精密但不精確
不精密也不精確
精密且精確
精確但不精密
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
相對精度(Relative Precision)是指觀測量的精度與觀測量本身的比值。若某甲量一距離100m得標準差1cm,某以乙量一距離50m得標準差亦為1cm,問何者量測精度較高?
甲
乙
甲乙相同
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