百度试题 结果1 题目Which of the following statements is (are) true of a normal distribution?The mean = the median = the mode. 相关知识点: 试题来源: 解析 is true. This is property of the nomal curve 反馈 收藏
A [分析] 峰度(kurtosis)是指一个分布与正态分布在陡峭程度上的差异程度。高峰态(leptokurtic)指一个分布的峰值比正态分布更为陡峭;低峰态(platykurtosis)指一个分布的峰值比正态分布更为平缓。 如图1所示,与正态分布相比,高峰态分布会有更多的观测值集中在(算术)平均值附近(图中a区),同时会有更多远离平均值...
The normal distribution is an example of ___.A.a continuous distributionB.an exponential distributionC.a bimodal distributionD.a discrete distribution的答案是什么.用刷刷题APP,拍照搜索答疑.刷刷题(shuashuati.com)是专业的大学职业搜题找答案,刷题练习的工
The normal distribution is a ___ distribution.A.discreteB.continuousC.positively skewedD.rectangular的答案是什么.用刷刷题APP,拍照搜索答疑.刷刷题(shuashuati.com)是专业的大学职业搜题找答案,刷题练习的工具.一键将文档转化为在线题库手机刷题,以提高学习效率,是
正确答案:A 分享到: 答案解析: The standard normal distribution is defined as a normal distribution that has a mean of zero and a standard deviation of one. The other choices apply to any normal distribution. 统计:共计65人答过,平均正确率73.84% 问题:进入高顿部落发帖帮助相似...
1The random variable X follows a normal distribution with mean u and standarddeviation 4.5. In order to test the null hypothesis H: μ =15 against thealternative hypothesis H1 :u≠q15 nine observations of X are taken. The meanofthis sample is a. Find an expression for the p-value in ...
百度试题 结果1 题目Theoretically, the mean, median, and mode are all equal for a normal distribution.相关知识点: 试题来源: 解析 正确 反馈 收藏
最左边的图表示均值为零(即2x1零向量)和协方差矩阵Σ=i(2x2恒等矩阵)的高斯分布。具有零均值和恒等协方差的高斯也称为标准正态分布。中间图为零均值高斯密度,Σ=0.6I。在最右边的图中,Σ=2I。我们看到,随着Σ变大,高斯变得更“分散”,当它变得更小,分布变得更“压缩”。
(h) is still normally distributed due to the additivity of the normal distribution. To obtain the 1%-quantile of the normal distribution for the VaR calculation is not hard. We can then calculate VaR(1) or VaR(h) using (14). Under the Normal case, it is easy to find that the bias ...
百度试题 题目A standardised normal distribution has the following characteristics: 相关知识点: 试题来源: 解析 the mean is equal to 0 and the variance is equal to 1 反馈 收藏