【多选题】【消耗次数：1】
加权算术平均数的大小
①
受各组变量值大小的影响
②
受各组次数多少的影响
③
随X的增大而增大
④
随X的减少而减少E、与次数多少成反比关系
参考答案：
复制
纠错
相关题目
【多选题】
加权算术平均数的大小受哪些因素的影响( )。
①
受各组频率和频数的影响
②
受各组标志值大小的影响
③
受各组标志值和权数的共同影响
④
只受各组标志值大小的影响
⑤
只受权数的大小的影响
【多选题】
加权算术平均数的大小受哪些因素的影响（ ）
①
受各组频率和频数的影响
②
受各组标志值大小的影响
③
受各组标志值和权数的共同影响
④
只受各组标志值大小的影响
⑤
只受权数的大小的影响
【多选题】
加权算术平均数的大小受哪些因素的影响
①
受各组频数或频率的影响
②
受各组标志值大小的影响
③
受各组标志值和权数的共同影响
④
只受各组标志值大小的影响
⑤
只受权数大小的影响
随机题目
【单选题】
To their credit the Department of Energy _____these ideas and funded a detailed study.
①
took over
②
took on
③
took up
④
took to
【单选题】
If the scheme is _____carried out without waste of time or energy I shall be completely satisfied.
①
relatively
②
noticeably
③
appropriately
④
efficiently
【单选题】
When we drove to the country, we saw many _____.
①
herds of cattles
②
herds of catt
③
herd of cattle
④
herd of cattles
【单选题】
Televisions enable us to see things happen almost at the exact moment _____.
①
which they are happening
②
they are happening
③
which they happen
④
they have happened
【单选题】
To their credit the Department of Energy _____these ideas and funded a detailed study.
①
took over
②
took on
③
took up
④
took to
【单选题】
Once our chickens started laying eggs, we had such a _____of eggs that we were giving many away to our neighbors.
①
output
②
surplus
③
production
④
plenty
【单选题】
Individual lines of the poem were very beautiful, but I didn’t see how the lines fit together. To me, the poem wasnt _____.
①
inherent
②
coherent
③
logical
④
corporate
【单选题】
This book has been in the works so long that I have lost _____of most of the sources found for me by the staff of the library.
①
trace
②
trail
③
track
④
touch
【单选题】
_____ for a long time, the fields are all dried up.
①
There has been no rain
②
Having no rain
③
There having been no rain
④
There being no rain