The spread of the coronavirus over the last 6 months has forced governing bodies all over the world to take some drastic measures to protect their people. In its wake, the coronavirus has claimed hundreds of thousands of lives, with some countries being affected much worse than the others.

In this article, we shall discuss several factors and choose the best ones that may be used to predict the risk that a country is under. Furthermore, we shall also see if the current government policies are sufficient or not with regards to the risk that a country is in, along…


In my previous article titled “CLASSIFICATION OF COUNTRIES BASED ON A RISK FACTOR”, I explained how the risk level of a country can be predicted based on some available data. The goal of this article is to compare several models used to predict the risk level (high, low, or medium) and identify the ideal model from the lot. This article is best understood if the previous article has been read.

In this context, a “model” establishes the relationship between the factor to be predicted, which is the risk level in this example, and some other parameters that determine the risk…


Several ideas and strange theories have surfaced as the fight against the corona virus advances. Some of these claims have proven to be quite helpful regardless of them being accurate or not while others, not so much. One such statement is that the way to defeat COVID-19 is to relax social distancing measures and leave room for the development of herd immunity in humans.

The reason I will be looking in this direction is a major part of the world population is already in a state of disagreement with the social-distancing and lockdown measures. …


It has been almost 6 months since the first reported case of corona virus, and we have seen several different approaches by the national governments of the world to tackle the virus. In this article, we shall try to predict if a country is a low, medium, or high-risk zone based on various factors and decide which of the factors are the best choices for prediction.

The factors that determine the risk factor of a country are its population density, how strong the country is economically, median age of the country, presence of the elderly, etc. …


Given the fact that COVID-19 spreads directly through liquid droplets from an infected person’s nose or mouth, or while coming in contact with surfaces on which said droplets have landed, it is logical to assume that the spread of the virus would be greater in countries that are more densely populated.

In this article, we will discuss whether the data available on the spread of the corona virus till now supports the above argument. We shall also look at some models that were generated to predict the total cases when the population density is given. ‘R squared’ is a term…

Pranitha Vattoni

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