提问三道数学题1.S is a set of n consecutive integers.比较themean of S与the median of S大小答案是一样大我知道Mean=(a1+an)/2,当n=2k时,median=(ak+ak+1)/2;当n=2k+1时,median=ak+1,问题是怎么比较出mean和median想等的?(n,k,k+1均为a的角标)2.If 9 trees are originally planted in...
Theorem One-to-One Function.LetXXbe a random variable that takes values in an intervalIIof real numbers.Letrrbe a one-to-one function defined on the intervalII.Ifmmis a median ofXX,thenr(m)r(m)is a median ofr(X)r(X) 其实用到的主要特性是双射函数的可逆性质,换句话说就是能找到反函数。
A. The mean is greater than the median. B. The median is greater than the mean. C. The mean and median are equal. D. The mode is greater than the mean. 相关知识点: 试题来源: 解析 A。在正偏态分布中,均值大于中位数。本题考查了偏态分布的概念以及对句子的理解。反馈...
Themean=43 The median is the number in an ordered set of data that is in the middle. If we have a set of data with an odd number of data points then the median is the data point in the middle. 1,2,3,4,5,6,7 If we have a set of data with an even number of data...
mean′ devia′tion n. Statistics.a measure of dispersion, computed by taking the arithmetic mean of the absolute values of the deviations of the functional values from some central value, usu. the mean or median. Also calledaverage deviation. ...
find the mean, the median, and the mode of the data, if possible.If any measure cannot be found or does not represent the center of the data,explain why.Tmitiom The 2012-2013 tuition and fees (in thousands of dollars) for the top14 universities4139424745424244444045444444 相关知识点: 试...
Median would be less than the mean. 青云英语翻译 请在下面的文本框内输入文字,然后点击开始翻译按钮进行翻译,如果您看不到结果,请重新翻译! 翻译结果1翻译结果2翻译结果3翻译结果4翻译结果5 翻译结果1复制译文编辑译文朗读译文返回顶部 中值将小于平均值。
The mean of a class of data is 40, the Median of the class of data is 45, the Mode of the class of data is 50, then the distribution of the class of data is ( ) A. moderately skewed left B. moderately skewed right C. symmetrical distribution D. not clear 相关知识点: 试题...
athe mean,median,and mode to be closer to each other in a set of 200 measrements than they would be in a smaller set of data? 手段、中点和方式是离彼此较近在一套200 measrements比他们在一个更小的数据设置? [translate] 英语翻译 日语翻译 韩语翻译 德语翻译 法语翻译 俄语翻译 阿拉伯语翻译 ...
In this case, the average of 16 and 20 is 18. The median age is 18, even though that age is not represented in the group. This is why the median is called anapproximationfor groups of even numbers. Mean vs. Median The main disadvantage of using the mean to describe a group of numb...