【简答题】按应用范围划分为3种类型:__________________、___________________、___________________。
【单选题】His accent identified him ________ a Frenchman.
【单选题】正态分布曲线下,横轴上,从均数μ到μ- 2.58S,则该区间所占曲线下的面积为:
【单选题】The other boys used to______ him because of his accent. [ ]
【单选题】正态分布曲线下,横轴上,从均数μ到μ+2.58σ,则该区间所占曲线下的面积为:
【简答题】His accent gave him away.
【单选题】正态分布曲线下,横轴上,从均数 μ 到 μ -2.58S,则该区间所占曲线下的面积为
【单选题】His accent him a Scot/ that he was a Scot.
【单选题】正态分布曲线下,横轴上,从μ-1.96s到μ+1.96s,则该区间所占曲线下的面积为