题目内容

下列各分布中，期望值等于8，方差等于4的是()(A)N (8, 16)； (B) B (16, 0.5)；(C)π(8)；(D)U(6, 10)

查看答案

搜索结果不匹配？点我反馈

更多问题

The Jurassic Park is _ Steven Spielberg movie in which _ hero fights bravely and protects his friends and family from dinosaurs.

A. /;the
B. a;the
C. /;a
D. the;a

Mr. Brown, __ chairman of the trade union, will visit our factory in _ month of May.

A. /; the
B. a; the
C. the; /
D. the; the

_ meeting held last night was ___ great success.

A; a
B. A ; /
C. The ; a
D. The ; /

Beginning college is exciting:many of us can be easily overwhelmed by _ details of running __ well-balanced life.

A. /; the
B. the; a
C. /; a
D. the; /