百度试题 结果1 题目【题目】The mean of 6 numbers is 7. what is the total of the numbers?B13427You cannot tell 相关知识点: 试题来源: 解析 【解析】to (B) + 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 ...
结果1 题目 4. The mean ( average) of n numbers is p. When the number q is removed from the list of numbers, then the mean(average) increases by 2. The value of q is(A)p-2n(B)p-n+2A(C)2p-n(D)2p-n+2(E)p-2n+2 相关知识点: 试题来源: 解析 答案见上 反馈 收藏...
百度试题 结果1 题目 20. The mean of a set of 7 numbers is 3.6 and the mean of a different set of 18 numbers is 5.1. Calculate the mean of the 25 numbers. 相关知识点: 试题来源: 解析 4.68 反馈 收藏
Question 10: A set of data consists of 20 numbers. The mean of the numbers is 8 and the standard deviation is 3.(a)Calculate∑x∂nd∑x^2 and(b) A sum of certain numbers is 72 with mean of 9 and the sum of the squares of these numbers of 800, is taken out from the set ...
If the average (arithmetic mean) of the five numbers x, 7, 2, 16, and 11 is equal to the median of the five numbers, what is the value of x ? (1)7 < x < 11 (2)x is the median of the five numbers. 选项: A、Statement (1) ALONE is sufficient, but statement (2) alone ...
The average (arithmetic mean) of two numbers is 4x. If one of the numbers is y, then the value of the other number is
Accounting: What the Numbers Mean, 10/eBook Preface
Find the mean of the following set of numbers: 5, 26, 9, 14, 49, 31, 109, 5. This is a straightforward question that simply asks you to calculate the arithmetic mean of a given data set. First,add up all the numbers in the data set(remember that you don’t need to arrange them...
The average (arithmetic mean) of y numbers is x. If 30 is added to the set of numbers, then the average will be x - 5. What is the value of y in terms of x ?