题型:名词解释 The book didn’t _______ children because the author used two many scientific terms in it.A.apply toB.appeal toC.interest toD.lead to 查看答案
题型:名词解释 假设随机变量X1,X2…,X2n独立同分布,且EXi=DXi=1(1≤i≤2n),如果Yn=,则当常数c=______时,根据独立同分布中心极限定理,当n充分大时Yn近似服从标准正态分布. 查看答案