题目:设随机变量X的概率分布列为P{X = k} = (1/3)^k (k = 1, 2, 3),则P{X = 2} = :
2024-11-13
题目:设随机变量X的概率分布列为P{X = k} = (1/3)^k (k = 1, 2, 3),则P{X = 2} = :
A. 1/3 B. 1/9 C. 2/9 D. 2/27
正确答案:A
试题解析:暂无
题目:设随机变量X的概率分布列为P{X = k} = (1/3)^k (k = 1, 2, 3),则P{X = 2} = :
A. 1/3 B. 1/9 C. 2/9 D. 2/27
正确答案:A
试题解析:暂无