【多选题】【消耗次数：1】
位置平均数是指( )。
①
算术平均数
②
调和平均数
③
几何平均数
④
众数
⑤
中位数
参考答案：
复制
纠错
相关题目
【多选题】
在什么条件下，加权算术平均数等于简单算术平均数( )。
①
各组次数相等
②
各组变量值不等
③
变量数列为组距数列
④
各组次数都为1
⑤
各组次数占总次数的比重相等
随机题目
【单选题】
Anewtechnique______,theyieldsasawholeincreasedby20percent.
①
working out
②
having worked out
③
having been worked out
④
to have been worked out
【单选题】
The manager promised to keep me _____ of how our business was going on.
①
to be informed
②
on informing
③
informed
④
informing
【单选题】
The match was canceled because most of the members______a match without a standard court.
①
objected to having
②
were objected to have
③
objected to have
④
were objected to having
【单选题】
In Australia，_____ the Asians make their influence in businesses large and small.
①
feeling
②
feel
③
felt
④
to be felt
【单选题】
The teacher doesnt permit______in class.
①
smoke
②
to smoke
③
smoking
④
to have a smoke
【单选题】
Thechildrenwenttheretowatchtheirontower________.
①
to erect
②
erecting
③
be erected
④
being erected
【单选题】
Mr. Johnson preferred_______ heavier work to do.
①
to be given
②
to be giving
③
to have given
④
having given
【单选题】
The speaker, _______ for her splendid speeches, was warmly received by the audience.
①
having known
②
being known
③
knowing
④
known