The harmonic mean of two numbers can be calculated as twice their product divided by their sum. The harmonic mean of 1 and 2016 is closest to which integer?( )A. 2 B. 45 C. 504 D. 1008 E. 2015 相关知识点: 试题来源: 解析 A N/A. ...
Question:The harmonic mean of two numbersxandy, symbolized ash(x, y), is defined as 2 divided by the sum of the reciprocals ofxandy, whereas the geometric meang(x, y) is defined as the square root of the product ofxandy(when this square root exists), and the a...
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
A step-by-step illustrated guide of how to calculate the average (mean) of 2 NumPy arrays in multiple ways.
The mean of the four numbers is 6.8. **1. Calculate the sum of the first three numbers:** Since their mean is 5.6, their sum is 3 * 5.6 = 16.8 **2. Calculate the sum of all four numbers:** Add the fourth number to the sum of the first three: 16.8 + 10.4 = 27.2 **3. ...
百度试题 结果1 题目3. The mean( average) of the numbers 12, 14, 16,and 18 is(A)30(B)60(C)17(D)13(E)15 相关知识点: 试题来源: 解析 3.E
Mean is the average value of the given set of observations. In statistics, we also come across different types of mean such as Arithmetic, Geometric and Harmonic mean. Leant how to find the mean here.
arithmetic mean (average) 21、 算术平均值1 nE=å ain i =12. median 中位数* The median is the middle value of a list when the numbers are in order.* 先排序,后取中。3. mode 众数* The mode of a list of numbers is the nmuber that occurs most frequently in the list.* A list ...
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Number A is (),Number B is ()and Number C is (). 答案相关推荐 1 9 The mean of three numbers A, B and Cis 30.Number A is twice Number B and is 5 less than Number C. Number A is (),Number B is ()and Number C is (). ...