For my readers who have noticed that I have not posted in a couple of weeks, it is because I have been sick in hospital with quincy and, aside from the fact I was ill, I could not get to a computer to post anything. I’m home from hospital now…

I have spent the last several days studying a YouTube video on statistics titled, “Statistics — A Full University Course on Data Science Basics”. This seemed to be an introductory course, but I found it to be easy to follow and as a result I was able to take comprehensive…

A z-score is a numerical measurement that describes a value’s relationship to the mean of a group of values. The z-score is measured in standard deviations from the mean. If a score is 0, this means that the value is the same as the mean score. A score of 1…

The Empirical Rule (sometimes called the three sigma rule) is a rule in statistics that states that, for normally distributed data, almost all of the data will fall within three deviations either side of the mean. More specifically:- 68% of the data will fall within the first deviation, 95% of…

Whilst studying statistics, I happened to come across Chebychev’s theorem, which is named after the Russian mathematician, Pafnuty Chebychev, who is considered to be the founding father of Russian mathematics. In the field of statistics, Chebyshev’s theorem estimates the minimum number of observations that fall within a specified number of…

In an earlier post I discussed writing the code in Python for four common statistical functions, and that post can be found here:- https://medium.com/geekculture/write-your-own-statistical-functions-using-python-bc2c45a3aa39 In the past few days I decided to pick up my studies of statistics again to see if I could absorb more of this science if…

I am always endeavouring to improve my skill in the Python programming language. Although I have not yet attended an interview where I would be required to work with Python, I am continuously working to improve my skill in this area just in case that day may come. In this…

Statistics is the discipline that concerns the collection, organisation, analysis, interpretation and presentation of data. As such, this is a field that is integral to data science. In fact, the Python programming language has statistical functions written into the program. In addition, there are libraries that deal primarily with statistics…

One of the fantastic things about computers and computer programming is the fact that we are able to easily calculate formulas that we had formerly done by hand. One such formulas that we had formerly computed by hand is the factorial, which is then used to calculate the number known…