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。
解析:The median is the middle value in an ordered set of values. Therefore, the first step is to put the numbers in order, as follows:3, 15, 19, 72,80,82Because the set includes an even number of values, take the average of the middle values:19 + 72 = 91 91 + 2 = 45.5 ...
What is the median of the scores 34, 23, 78, 12, 56, 43, 28, 9, 24 and 87?A.26B.28C.3
20. The median of the list n,n+3,n+4,n+5,n+6,n+8,n+10,n+12,n+15 is 10.What is the mean?Answer: 相关知识点: 试题来源: 解析 20.【答案】11。【解析】有9个数,中间数是第5个数n+6,因此n+6=10,n=10-6,则n+3=10-3,n+4=10-2n+5=10-1n+8=10+2,n+10=...
Therefore, there are 1976 of the 4040 numbers after 2020. Also, there are 2064 numbers that are under and equal to 2020. Since 442 is equal to 1936, it, with the other squares, will shift our median's placement up 44. We can find that the median of the whole set is 2020.5, and ...
We substitute the median for 10 and the equation becomes n+6=10. Subtract both sides by 6 and we get n=4. n+n+3+n+4+n+5+n+6+n+8+n+10+n+12+n+15=9n+63. The mean of those numbers is 9n+639 which is n+7. substitute n for 4 and 4+7=11.结果...
Median plays an important role in the world of statistics. By definition, it is a value which divides an array into two equal parts. In this problem you are to determine the current median of some long integers. Suppose, we have five numbers {1,3,6,2,7}. In this case, 3 is the ...
(2) 35 percent of the projects at Company Z have 2 or fewer employees assigned to each project. 选项: 答案: C 经典答疑 发起提问 提问: 点此查看答疑 假设100个projects。 前35个projects是小于等于2个人,中间36到75个projects为3人,剩下25个为大于等于4个人的projects。所以确定median是3。 但如果是...
百度试题 结果1 题目【题目】T he median of the list n, n+3, n+4,n+5,n+6,n+8,n+10,n+12,n+15is10.What is the mean?()A.4B.6C.7D.1E.11 相关知识点: 试题来源: 解析 【解析】E 反馈 收藏
number from the left, which is n+6.We substitute the median for 10 and the equation becomes n+6=10.Subtract both sides by 6 and we get n=4.n+n+3+n+4+n+5+n+6+n+8+n+10+n+12+n+15=9n+63.The mean of those numbers is 9n+639 which is n+7.substitute n fo...