Step 1: First, we need to calculate the variables for these two values using the VAR.P function. Step 2: Go to the “Data” tab and click “Data Analysis.”. Scroll down and select z-Test: Two Sample for Means” and click on “OK.”. Step 3: For the “Variable 1 Range,” select “Student 1” scores. For the “Variable 2 Range Z分数可以让你在一组数据中取任意给定的样本，同时确定它高于或低于均值多少个标准差。。要想找出一个样本的Z分数，你就得找出样本的均值、方差和标准差。要计算Z分数，你需要找到样本值和均值之间的差值，然后除以标准差。尽管这个方法有很多步骤，但计算起来相当简单。 观察你的数据 Using the (x-µ) / σ, you can calculate z-score in Excel by inputting these values manually. Select the first cell in the Z-Score column, type an equal sign ( =) followed by an open parenthesis, and select the first value in the column containing the datasets whose Z-Score you want to calculate. Calculate Z Score and probability using SPSS and Excel. SPSS Excel one sample T Test. Calculate probability of a range using Z Score. Assume that a random variable is a normally distributed (a normal curve), given that we have the standard deviation and mean, we can find the probability that a certain value range would occur. By definition, Z score is: #z=(x-mu)/sigma# where #x# is your datum, #mu# is the mean of your population and #sigma# is its standard deviation. Basically, it's a measure of deviation from the mean in units of standard deviation. Unless I misunderstood your problem, I see no way you can calculate this number without knowing a standard deviation. Query1 (custom function): let ZScore = (datatable as table, column as list) => let average = List.Average (column), sdev = List.StandardDeviation (column) in Table.AddColumn (datatable, "Z-Score", each Number.Abs (average - [Data])/sdev) in ZScore. Here are the codes for 'Table' query in 'Advanced editor'. by zscoregeek. The function to calculate z-score in Excel is STANDARDIZE (). This function accepts input parameters like data set, mean, and standard deviation. To calculate the mean and standard deviation, use the AVERAGE (x1 : xn ) and STDEV.S (x1 : xn ) functions in Excel. The Z-score is a measure of how many standard deviations an You can calculate the Z-score using the formula below: Z-score = (x - μ) / σ. Where: x is the value of your data point. μ is the mean of the sample or data set. σ is the standard deviation. You can calculate Z-score yourself, or use tools such as a spreadsheet to calculate it. Below are steps you can use to find the Z-score of a data set: 1 To recap, the steps for calculating a Z score in Excel are: 1) enter the formula '=Z.dist()' into a cell, 2) input the data value you want to calculate the Z score for, 3) input the mean and standard deviation values, and 4) press enter to calculate the Z score. Subscribe Now:http://www.youtube.com/subscription_center?add_user=EhowtechWatch More:http://www.youtube.com/EhowtechCalculating the Z-score in Excel will req edY2.