A problematic data visualisation on the web has been found and ggplot2 is used to reconstruct a data visualisation to fix the problems that identified earlier.

The purpose of this investigation is to analyse the price difference between the products of these two giant supermarkets to find out which is cheaper.

To analyze whether the biilac diameter of both male and female fits for normal distribution

The assignment makes use of the knowledge gained in the data pre-processing course to process the open data set. The data utilised in this assignment is about the flight delay and cancellation information in the United States.

An analysis on the correlation between Happiness and Healthy life expectancy