[問題] 高二數學
※ [本文轉錄自 SENIORHIGH 看板]
作者: henrywon (淡。亨利王 <(￣▽￣)>) 看板: SENIORHIGH
標題: [問題] 高二數學
時間: Sun May 4 23:17:59 2008
1.丟硬幣試驗中 硬幣出現比例呈常態分布。
今丟一個勻稱硬幣100次，出現正面比例為x
依常態分布規則，求x≧0.6的機率
2.若抽樣樣本數n＝100時，母體比率p的95%信賴區間之最大誤差
e＝0.04，假設抽樣樣本數n＝400，樣本比率不變，則p的95%
信賴區間之最大誤差e＝？
3.若比率p的95%信賴區間為[0.32,0.56]，求p的99.7%信賴區間。
問3題 請板上的大大幫我解題 方便的話請寫上詳解 謝謝!!
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