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# 統計學，單選題題目

1.an example of a qualitative variable.

******2.Can assume only whole number values.

3.Can assume only certain clearly separated values.

4.Cannot be negative.

1.Has a meaningful zero point.

2.Is based on ranks

3.Cannot assume negative values.

*****4.All of the above.

1.There is a meaningful zero point

2.The objects can be ranked

*****3.Each object must appear in at least one category

4.Each object can be included in only one category

1.It is a part of population

2.It must contain at least five observations

3.It refers to descriptive statistics

****4.All of the above are correct

1.Describe the population

****2.Describe the data we collected

4.Compute an average

1.It must be a large number of values

2.It must refer to people

******3.It is a collection individuals, objects, or mesurements

4.None of the above

A nominal scale variable is

1.Usually the result of counting something

2.Has a meaningful zero point

****3.May assume negative values

4.Cannot have more than two categories

1.Usually involves ranking

2.Cannot assume negative values

*****3.Has a meaningful zero point

4.Is usually based on counting

1.Always refers to a sample.

2.Is not numeric.

3.Has only two possible outcomes

****4.All of the above are correct

1.Organizing data

2.Presenting data

3.Interpreting data

***4.All of the above

3.Can assume only certain clearly separated values.

3.Each object must appear in at least one category

4.Each object can be included in only one category

2 個已更新項目:

3 個已更新項目:

4 個已更新項目:

### 3 個解答

• 1 0 年前
最佳解答

第一題. a discrete variable is

2.Can assume only whole number values.

第二題.The ordinal scale of measurement

2.Is based on ranks

第三題.Categories are exhaustive when 種類；部屬；類目，是，徹底的；詳盡無疑的

4.Each object can be included in only one category

第四題.Which of the following statements is true regarding a sample?

1.It is a part of population

第五題.In descriptive statistics our main objective is to

2.Describe the data we collected

第六題.Which of the following statements is true reading a population?

3.It is a collection individuals, objects, or mesurements

第七題.A nominal scale variable is

3.May assume negative values

第八題The ratio scale of measurement

3.Has a meaningful zero point

第九題. A qualitative variable

2.Is not numeric.

第十題.The science of statistics includes which of the following

4.All of the above

以上是我的解答 參考看看..

2008-10-10 08:16:21 補充：

Hi,

關於第一題.3.Can assume only certain clearly separated values.

不符合a discrete variable的特性, 因為a discrete variable是用來表達whole units or mutually exclusive categories. 譬如性別可分為男或女, 我們就可假設男是1, 女是2, 這都是我們為研究設定的整數值, 並不代表真實的數值.

2008-10-10 08:17:39 補充：

關於第三題.

幫選項分類必須做到exhaustive and mutually exclusive(窮盡與互斥)才能使each object放置在一個最適當的位置. 譬如年紀, 分類可為(1)25歲或以下 (2)26-35歲 (3)36-45歲 (4)46-55歲 (5)56歲或以上 任何年紀的object都僅可歸類在一個選項中, 這樣研究者才能夠做比較及分析

參考資料： 大學統計課
• 匿名使用者
6 年前

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• 匿名使用者
6 年前

到下面的網址看看吧