問題詳情

13. Recent market research reveals that an estimated 30% of U.S. households ownone or more personal computers (PCs). Supposc that in a sample of 500houscholds in a large high-tech community, 178 own PCs. What distribution isappropriate to use to estimate the binomial random variable x = the number ofthe 500 homes that own PC's?
(A)normal
(B) exponential
(C)Poisson
(D)uniform

參考答案

答案：[無官方正解]
難度：計算中-1
書單：沒有書單，新增