下载APP
【单选题】
随机抽取某高中100名男同学，得到其身高均值为4250px，标准差为250px，则该中学男同学平均身高的95%CI为
A.
160~180
B.
150.4~189.6
C.
168.04~171.96
D.
167.42~172.58
举报
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】Ladies and gentlemen, welcome to Dalian, a famous summer resort ( 避暑胜地 ) and one of the best tourist cities in China. With clear sky, green mountains, blue seas, fine beaches, clean streets and lovely...
A.
comes in the best season.
B.
is here to join more tourists
C.
may not stand the heat here.
D.
is traveling back home.