我有個小問題,你是看不懂題目還是看懂了不會做.
我先把題目給你翻譯一下吧
讓X表示在過去12個月內(nèi)訪問GP的訪問者的個數(shù),根據(jù)過去的經(jīng)驗(yàn)數(shù)據(jù),我們有
X=0,1,2,3,5的時(shí)候的對應(yīng)的概率
問題問的是,在人數(shù)至少為1的情況下,訪問者數(shù)量的條件期望是多少?
希望我翻譯清楚了.
求助英文統(tǒng)計(jì)學(xué)題
求助英文統(tǒng)計(jì)學(xué)題
Let X represent the number of visits to a GP over the last 12 months.From past record
x 0 1 2 3 5
P(X=x) 0.5 0.2 0.1 0.1 0.1
What is the expected number of visits given that a patient has had at least one visit?
Let X represent the number of visits to a GP over the last 12 months.From past record
x 0 1 2 3 5
P(X=x) 0.5 0.2 0.1 0.1 0.1
What is the expected number of visits given that a patient has had at least one visit?
英語人氣:607 ℃時(shí)間:2020-02-05 10:16:15
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