设随机变量,则=_____________.(请写成小数格式)/ananas/latex/p/1904956/ananas/latex/p/801636
27.5
举一反三
- 设,在内,则在内（ ）/ananas/latex/p/243901/ananas/latex/p/22409/ananas/latex/p/243903/ananas/latex/p/2154/ananas/latex/p/22992
- 设是独立同分布的随机变量序列，且,则,为标准正态分布函数./ananas/latex/p/561768/ananas/latex/p/561772/ananas/latex/p/561773/ananas/latex/p/210215
- 设Ω{1,2,…,10},{2,3,4},{3,4,5}，则/ananas/latex/p/1591/ananas/latex/p/37739/ananas/latex/p/37740/ananas/latex/p/502945
- 设随机变量X的概率密度为,则随机变量的概率密度为()/ananas/latex/p/19989/ananas/latex/p/510339
- 已知()=0.4，则()=( )/ananas/latex/p/152/ananas/latex/p/278/ananas/latex/p/847/ananas/latex/p/281/ananas/latex/p/152/ananas/latex/p/4781/ananas/latex/p/7419/ananas/latex/p/6547
内容
- 0
设在上二阶可导，且,则在内是（ ）/ananas/latex/p/2154/ananas/latex/p/13269/ananas/latex/p/243898/ananas/latex/p/243899/ananas/latex/p/95388
- 1
若随机变量XN(u,),则P(X>a)=1-P(Xa)/ananas/latex/p/173/ananas/latex/p/3922/ananas/latex/p/1237
- 2
设X和Y为随机变量，且P{X0，Y0}=，则P{min(X,Y)<0}=/ananas/latex/p/990/ananas/latex/p/990/ananas/latex/p/36622
- 3
设可微，且，则/ananas/latex/p/2154/ananas/latex/p/902448/ananas/latex/p/54324
- 4
设,在D上可积，，则 , , .https://mooc1-1.chaoxing.com/ananas/latex/p/27236https://mooc1-1.chaoxing.com/ananas/latex/p/356004https://mooc1-1.chaoxing.com/ananas/latex/p/1153863https://mooc1-1.chaoxing.com/ananas/latex/p/1153883https://mooc1-1.chaoxing.com/ananas/latex/p/1153941https://mooc1-1.chaoxing.com/ananas/latex/p/1153969https://mooc1-1.chaoxing.com/ananas/latex/p/1153978