The mathematical measure of the uncertainty is called probability. For example, consider the following questions: (a) Will it rain today? (b) Which of the three candidates will win? (c) On throwing a ...

Alpha, Beta, Delta, and Omicron, as the many types of variants of the SARS-CoV-2 virus keep emerging, the global pandemic of COVID-19 has developed wave by wave. This is why the information in the ...