百度试题 题目For a normal distribution, what approximate percentage of the observations fall within ±3 standard deviation of the mean? A. 66%. B. 95%. C. 99%. 相关知识点: 试题来源: 解析 C 略 反馈 收藏
For a normal distribution, what approximate percentage of the observations fall within ±3 standard deviation of the mean?A. 66%.B. 95%.C. 99%. 正确答案:C 分享到: 答案解析: For normal distributions, approximately 99% of the observations fall within ±3 standard deviations of the mean. ...
aFor a normal distribution, we could remove data points which are more than three standard deviations from the mean (since they have less than a 1% chance of belonging to the distribution). 为正常分配,我们可能取消是超过三标准偏差从手段的数据点 (,因为他们比属于的1%机会有发行的较少)。 [...
Normal Distribution A normally distributed random variable has a bell-shaped curve where the data is equally divided about the mean, which is also equal to the median and mode. The data to the left and right is symmetric, which means {eq}50\%{/eq} ...
aThis measure is exactly the same as that used for value-at-risk calculations. For a normal distribution, it is defined by a point a certain number of standard deviations away from the mean: 这项措施确切地是相同象用于价值在风险演算的那。 为正常分配,它是由点定义的一定数量的标准偏差从手段:...
百度试题 题目For any normal distribution, any value less than the mean would have a ___.相关知识点: 试题来源: 解析 negative z-score 反馈 收藏
For a normal distribution that has a mean of 100 and a standard deviation of 8, what is the z-score for x = 112? One of the values in a normal distribution is 43 and its z-score is 1.65. If the mean of the distribution is 40, what is...
what is the MLE for the mean of a normal distribution whose variance is known to be 扫码下载作业帮搜索答疑一搜即得 答案解析 查看更多优质解析 解答一 举报 正态分布的均值的最大似然估计等于你所取样本的均值.但是你题中只说了方差是2,没有说样本均值是多少啊?这也能求出来么 解析看不懂?免费查看同类...
For any normal distribution, any value less than the mean would have a ___. A.positive z-score B.negative z-score C. negative variance D.negative probability of occurring 点击查看答案手机看题 你可能感兴趣的试题 单项选择题 开闭所设置在大宗负荷、车站附近,其作用为:() A.提高输电距离B.提高...
百度试题 题目For the average normal stress distribution,;;,;;represents;; ; ; ; ; ; ; ; ; ; ; ; ;;.? 相关知识点: 试题来源: 解析 internal resultant normal force 反馈 收藏