【多选题】【消耗次数：1】
下列数列属于
①
品质分配数列
②
变量分配数列
③
组距式变量分配数列
④
等距变量分配数列
⑤
次数分配数列
参考答案：
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相关题目
【多选题】
次数分配数列
①
由总体按某标志所分的组和各组单位数两个因素构成
②
由组距和组数、组限和组中值构成的
③
包括品质分配数列和变量数列两种
④
可以用图表形式表现
⑤
可以表明总体结构和分布特征
【多选题】
在次数分配数列中
①
各组的频数之和等于100
②
各组的频率大于0
③
频数越小，则该组的标志值所起的作用越小
④
总次数一定，频数和频率成反比
⑤
频率表明各组标志值对总体的相对作用程度
【多选题】
在次数分配数列中
①
总次数一定，频数和频率成反比
②
各组的频数之和等于100
③
各组频率大于0，频率之和等于1
④
频率越小，则该组标志值所起作用越小
⑤
频率表明各组标志值对总体的相对作用程度
【多选题】
在次数分配数列中
①
总次数一定，频数和频率成反比
②
各组的频数之和等于100
③
各组频率大于0，频率之和等于1
④
频率越小，则该组标志值所起作用越小 E.频率表明各组标志值对总体的相对作用程度
⑤
频率表明各组标志值对总体的相对作用程度
随机题目
【单选题】
You ____ that letter to James. However, you didn’t.
①
ought to write
②
ought to have written
③
should write
④
should be writing
【单选题】
She found herself____ forward more eagerly to the holiday
at home.
①
looking
②
bringing
③
desiring
④
expecting
【单选题】
When Sarah and I ____ on an article for the school newspaper, we found it difficult to work together.
①
compiled
②
gathered
③
collaborated
④
collected
【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
【单选题】
Then Johnny reached quickly ______ the other pot, vigorously boiling on the stove.
①
down
②
out
③
for
④
to
【单选题】
The game was fixed for today but it has been____ for a week.
①
transfered
②
delayed
③
translated
④
postponed
【单选题】
Dr. Park was accused ____ the patient with overdose of sleeping pills so that the patient’s life was terminated before the expected time.
①
of providing
②
with providing
③
to have provided
④
to provide
【单选题】
I’ m going to do all I can to____ the unpleasant impression
you have of me.
①
move
②
remove
③
shift
④
transform
【单选题】
Jean Wagner’s most enduring contribution to the
study of Afro-American poetry is his insistence that
it ____ in a religious, as well as worldly, frame
of reference.
①
is to be analysed
②
has been analysed
③
be analysed
④
should have been analysed