A set of data are normally distributed with a mean of 500 and a standard deviation of 100. If there are 10,200 data between 500 and 600 inclusive, then how many figures in the data are less than 400? 显示答案 登录后才可以添加做题笔记哦,还没有账号? 马上注册 KMF 解析 网友解析 题目数...
翻译：如果这一堆观测量是正态分布的，那么这些观测量中有百分之多少的观测量是距离平均值大于1.3个标准差的（那个符号是标准差的意思）因为任何正态分布的变量都可以转化成标准正态分布变量（所有变量减去均值以后再除以标准差）之后就可以查询标准正态分布比例表了，Φ(z=1.3)-Φ(z=-1.3)=0.9...
百度试题 结果1 题目 A set of 500 values is normally distributed with a mean of 24 and a standarddeviation of 2.What percent of the data is i ntheintervaI22-26? 相关知识点: 试题来源: 解析 68.3% 反馈 收藏
2.Suppose a normally distributed set of data with 5000 observations has a mean of 194 and a standard deviation of 15. Use the 68-95-99.7 Rule to determine the number of observations in the data set expected to be abovea value of 209. Round ...
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13.A variable is normally distributed with a mean of 5.00 and a variance of 4.00. Calculate the probability of observing a value of negative 0.40 or less. That is, calculate P (Xi ≤ –0.40) given X is distributed as N(5, 4). Use this excerpt from the cumulative distribution function...
On 10% of occasions he is able to complete the crossword in k minutes or less. Find the value of k to the nearest whole number. 点击展开完整题目 试题详情 6. If the scores for a VCE subject are normally distributed with a mean of 30 and a standard deviation of 7, then approximately...
All SQL Server database servers have two HBAs; each is connected to a different fiber switch. Each fiber switch then has a path to each loop of the SAN. Two fiber loops connect the disk enclosures. Each SAN has multiple storage processors to process the data; these are balanced so that ...
Traditionally, a data warehouse was hosted on-premises, often on a mainframe computer. Today, many data warehouses are hosted in the cloud and delivered as cloud services. Evolution of the data warehouse Data warehouses were born in the 1980s to optimize data analytics by making integrated tran...
quality of governance is essential to environmental outcomes without tampering with existing policies. Contrary to this, Udemba44investigated the effects of good governance on environmental quality in Chile using a set of time-series data from the first quarter of 1996 to the fourth quarter of 2018...