Stem and leaf plot is used to plot for a numerical variable. It’s essentially a way to list our data…
Variance represents the average of the squared deviations from the mean. Because we square the deviations, the variance is always…
There are two main kinds of studies, observational studies and, experimental studies. The statistical process can be viewed in the…
Creating good graphics is a very important part of data visualization. Data visualization is not a science this is an…
Previous article discussed the basic contingency table of proportions and percentages. People often want to ask more about relationships between…
In data analysis, identifying outliers with the box plot rule helps pinpoint data points that significantly deviate from the majority.…
Analysis
View AllIntroduction Let’s take a hypothetical example and consider a company as property. The value of a property can be…
A straightforward solution to deal with unit of variance which is in squared units is to simply calculate the…
To better illustrate the concepts of mean, median and mode, let’s dive into an example survey about what makes…
Variance represents the average of the squared deviations from the mean. Because we square the deviations, the variance is…
Imagine you’re a teacher assessing student performance in a math exam where scores range from 0 to 100. You’ve…
