suppose that Z represent a standard( tabled) normal random variable.find the P(Z2.25) 相关知识点: 试题来源: 解析 由题意,随机变量Z服从标准正态分布, 因此P(Z<-2.25 or Z>2.25)=1-P(-2.25 一般地,计算此概率,需查标准正态分布表,查得P(Z<2.25)=0.9878; 于是P(Z<-2.25 or Z>2.25)=2[1...
suppose that Z represent a standard( tabled) normal random variable.find the P(Z2.25) 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 由题意,随机变量Z服从标准正态分布,因此P(Z<-2.25 or Z>2.25)=1-P(-2.25一般地,计算此概率,需查标准正态分布表,查得P(Z<2.25)=0.9878;...
Statistics - Standard normal table - Z is the standard normal random variable. The table value for Z is the value of the cumulative normal distribution at z. This is the left-tailed normal table. As z-value increases, the normal table value also increase
This table contains values of the cumulative distribution function for the standard normal random variable \\(\\Phi (z) = P(Z \\le z) = \\int\\limits_{ -\\infty }^z {{1 \\over {\\sqrt {2\\pi } }}{e^{ -{x^2}/2}}dz.} \\)...
Let Z be a standard normal random variable and calculate the following probabilities: a. {eq}P\left ( 0\leq Z\leq 2.17 \right ) {/eq} b. {eq}P\left ( Z\leq 1.37 \right ) {/eq} c. {eq}P\left ( -1.50\leq Z\leq 2.00 \right ) {/eq} d. {...
-1.2 of the table with the column holding 0.01. the table explains that the probability that a standard normal random variable will be less than -1.21 is 0.1131; that is, p(z < -1.21) = 0.1131. this table is also called a z-score table . z 0.00 0.01 0.02 0.03 0.04 0.05 -3.0 ...
Given that z is a standard normal random variable, find z given that the area to the left of z is 0.6700. Z-Scores: Given a probability value, we can determine the correspondingz-score using the standard normal table. By adding the values in the row ...
Find P(Z > a). The probability that a standard normal random variable (z) is greater than a given value (a) is easy to find. The table shows the P(Z < a). The P(Z > a) = 1 - P(Z < a). Suppose, for example, that we want to know the probability that a z-score will...
Related to Standard normal:Standard normal distribution normal distribution n. A theoretical frequency distribution for a random variable, characterized by a bell-shaped curve symmetrical about its mean. Also calledGaussian distribution. American Heritage® Dictionary of the English Language, Fifth Edition...
Using the Table to Calculate Normal Distribution In order to properly use the above table, it's important to understand how it functions. Take for example a z-score of 1.67. One would split this number into 1.6 and .07, which provides a number to the nearest tenth (1.6) and one to th...