題目：若隨機變量X服從二項分布B(n, p)，且E(X) = 3，D(X) = 2，則n和p的值分別為
2024-11-13
題目：若隨機變量X服從二項分布B(n, p)，且E(X) = 3，D(X) = 2，則n和p的值分別為
A. n = 3, p = 1/2 B. n = 6, p = 1/2 C. n = 9, p = 1/3 D. n = 12, p = 1/4
正確答案：B
試題解析：暫無
題目：若隨機變量X服從二項分布B(n, p)，且E(X) = 3，D(X) = 2，則n和p的值分別為
A. n = 3, p = 1/2 B. n = 6, p = 1/2 C. n = 9, p = 1/3 D. n = 12, p = 1/4
正確答案：B
試題解析：暫無
