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…
A straightforward solution to deal with unit of variance which is in squared units is to simply calculate the square…
In data analysis, identifying outliers with the box plot rule helps pinpoint data points that significantly deviate from the majority.…
Analysis
View AllDescribing Numerical Data In the previous articles we described two kinds of variable numerical and categorical, also known as…
Unlike the mean and median, which represent average and middle values respectively, the mode identifies the most frequently occurring…
When analyzing distributions, we often discuss their modalities. The modalities is the number of peaks they exhibit. A distribution…
One issue with range and the interquartile range (IQR) both is that they don’t include information from all the…
Histograms are incredibly useful when you have a large dataset and want to visualize the distribution of a numerical…
