给定的数据集中有 6 个数,先从小到大排列为 1,2,2,3,3,3,中间两个数是 2 和 3,所以中位数是(2+3)÷2=2.5。本题选项设置有迷惑性,A 选项 2 是错误的,因为直接选 2 没有考虑数据个数为偶数的情况;B 选项 3 是错误的,理由同上;D 选项 4 不在数据集中,明显错误。
百度试题 结果1 题目In a data set of 1, 2, 3, 4, 5, the median is ___. A. 2 B. 3 C. 4 D. 5 相关知识点: 试题来源: 解析 B。这组数据按从小到大排序为 1, 2, 3, 4, 5,中间的数是 3,所以中位数是 3。反馈 收藏
Recall that the median of a data set is the middle value, which we can find by ordering the values and finding the single value (or pair of values) in the center. In this question, we have 12 data values. Since 12 is an even number, when we order the values from least to greatest...
The median of a data set is the number that is the middle value of the set. It's easy to find the median if you first put the numbers in order from least to greatest. In this tutorial, see how to find the median of a data set, and see what to do if there are two middle val...
C. The middle value when the data is arranged in order. D. The average value. 相关知识点: 试题来源: 解析 C。“median”在统计语境下指的是中位数,即把一组数据从小到大或从大到小排列后,处于中间位置的数。选项 A 是最高值;选项 B 是最低值;选项 D 是平均数。反馈 收藏 ...
The median of a set of data is found by arranging the data in order and then finding the ___. A. largest value B. smallest value C. middle value D. average value 相关知识点: 试题来源: 解析 C。本题考查中位数的定义。中位数是将一组数据从小到大或从大到小排列后,处于中间位置的数值...
The median is a type of average value, which describes where the center of the data is located.MedianThe median is the middle value in a data set ordered from low to high.Finding the MedianThe median can only be calculated for numerical variables....
A data set has values: 10, 20, 30, 40, 50. What is the median? A. 20 B. 30 C. 35 D. 40 相关知识点: 试题来源: 解析 B。本题考查中位数的概念。将数据从小到大排列为 10, 20, 30, 40, 50,中间的数是 30,所以中位数是 30。A 选项 20 是最小值;C 选项 35 不是中间的...
The median of a set of data is 50. If there are 7 data points and the data are arranged in ascending order, which of the following could be the data set? A. 45, 48, 50, 51, 52, 54, 56 B. 40, 45, 50, 55, 60, 65, 70 C. 42, 48, 50, 52, 54, 56, 58 D. 35,...
In a data set with an odd number of values, the median is the middle element. If there are an even number of values, the median is the average of the middle two. For example, in the group of values {1, 2, 3, 4, 7} the median is 3. In the dataset {1, 2, 2, 3, 4, ...