問題詳情

⑵ P(9 ≤ X ≤ 118 ≤ X ≤ 14) (9 分)參考數據:0.6915 = P(−∞ ≤ Z ≤ 0.5), 0.8413 = P(−∞ ≤ Z ≤ 1.0), 0.9332 = P(−∞ ≤ Z ≤ 1.5),0.9772 = P(−∞ ≤ Z ≤ 2.0), 0.9938 = P (−∞ ≤ Z ≤ 2.5), 0.9987 = P(−∞ ≤ Z ≤ 3.0)

參考答案

答案:A
難度:適中0.660724
統計:A(2520),B(270),C(54),D(388),E(1)

內容推薦