“The mean of a set of numbers is the sum of the numbers divided by the number of elements.” In this definition, “mean” is not equal to ___. A. median B. mode C. range D. variance 相关知识点: 试题来源: 解析 D。“mean”是平均数。“median”是中位数;“mode”是众数;“ra...
解析 B。本题考查平均数的计算。平均数是一组数据的总和除以数据的个数。这组数据的总和是 3+4+5+6+7=25,数据个数是 5,所以平均数是 25÷5=5。A 选项 4 小于正确平均数;C 选项 6 大于正确平均数;D 选项 7 大于正确平均数。反馈 收藏
The mean of a set of numbers {4, 6, 8} is? A. 6 B. 7 C. 8 D. 9 相关知识点: 试题来源: 解析 B。平均数等于所有数的和除以数的个数,(4+6+8)÷3=18÷3=6,所以答案是 7 的选项 B 错误;选项 A6 是正确的平均数;选项 C8 和选项 D9 不是平均数。反馈 收藏 ...
百度试题 结果1 题目There is a set of numbers:(1) The mean is . (2) The median is . (3) The mode is .相关知识点: 试题来源: 解析 (1) 22 (2) 21 (3) 29反馈 收藏
EACH statement ALONE is sufficient. Statements (1) and (2) TOGETHER are NOT sufficient. 2The average (arithmetic mean) of a list of numbers is what percent of the sum of the numbers?(1) There are 8 numbers in the list.(2) The sum of the numbers in the list is 100.Statement (1...
There is a set of numbers:(1)The mean is .(2)The median is .(3)The mode is . 相关知识点: 试题来源: 解析 (1)22(2)21(3)29(1)(13+29+18+21+29)÷5=22(2)Arrange the numbers from least to greatest: 13, 18, 21, 29, 29. The median is 21.(3)29 appears twice. ...
The average (arithmetic mean) of a list of numbers is what percent of the sum of the numbers?(1) There are 8 numbers in the list.(2) The sum of the numbers in the list is 100.Statement (1) ALONE is sufficient,but statement (2) alone is not sufficient....
百度试题 结果1 题目The mean of a set ofnumbers is zero.For each statement below,tick ( ) the correct box. 相关知识点: 试题来源: 解析 Makes all three correct decisions,ie Makes two correct decisions 反馈 收藏
The mean of a finite set S of numbers is 14, the median of this set of numbers is 12, and the standard deviation is 1.8. A new set T is formed by muliplying each member of the set S by 3. Which of the following statements must be true of the set T? ()I. The mean of the...
英语翻译The standard deviation of a set of numbers is the average distance the set of numbers is from the mean of the set of numbers.If the standard deviation of a set of numbers is 6,which of the following would be the standard deviation of the new set of numbers formed by adding thr...