Statistics Introduction
Series of Posts This post is the first part of a short series of posts called Statistics. You […]
Series: Statistics
The Classification of Data
Are you starting out in your exploration of what it is like to be a data professional? This […]
Population and Sampling
Population and Sample The population includes all objects of interest whereas the sample is only a portion of […]
Visualizing Data
Visualizing data is the most intuitive way to interpret it, so it’s an invaluable skill. It is much […]
Central Tendency
In statistics we want to look at measures of central tendency, asymmetry, and variability. Univariate Measures What is […]
Measures of Dispersion
After considering measures of central tendency and asymmetry in our discussion of descriptive statistics, it’s time to look […]
Measures of Position
Measures of position let you determine the position of a value in relation to other values in a […]
Interquartile Range (IQR)
The middle 50% of your data is called the interquartile range, or IQR. The interquartile range is the […]
Covariance and Correlation
Relationships Between Variables Up to this point we’ve looked at univariate measures, those with one variable. We’ve looked […]