1 Problem 1 : Matplotlib Line Chart in Matplotlib (https://www.geeksforgeeks.org/line-chart-in-matplotlib-python/ ) 2 Problem 2 : Matplotlib Histogram in Matplotlib (https://www.geeksforgeeks.org/plotting-histogram-in-python-using-matplotlib/ ) 3 Problem 3 : Matplotlib Scatterplot in Matplotlib ( https://www.geeksforgeeks.org/matplotlib-pyplot-scatter-in-python/) 4 Problem 4 : Matplotlib Pie Chart in Matplotlib ( https://www.geeksforgeeks.org/plot-a-pie-chart-in-python-using-matplotlib/ )