Text: Download Coronavirus (COVID-19) Cases from Our World in Data site. Then transfer the CSV file to your R workspace. Then run R codes for the following:
1. Plot a line graph for total COVID cases for each of the Southern African countries from the period between April 2020 - April 2022 and report on the following:
a) Countries with the highest and lowest cases for each COVID wave shown.
b) Which period would you call the most infectious period for Southern Africa based on your plots?
2. Extract the Botswana new COVID cases and new deaths data for the year 2021 and answer the following:
a) What was the deadliest COVID month in Botswana in 2021?
b) Using an appropriate statistical method, evaluate if there is a correlation between infectivity and death.
c) Does the number of new deaths affect the number of new cases?
d) Based on the death patterns, argue on whether the measures implemented by the government, including lockdowns, were helpful?