Code in Python:

a. Use NumPy's random module to generate a random list of size 1000 of the following four categories: "Physics", "CS", "Math" and "Engineering".

- Use a seed of 42.

- Set the list of categories as:

disciplines = ['CS', 'Engineering', 'Math', 'Physics']

b. Store the data in an array called students_affiliations.

c. Use matplotlib to plot the data in students_affiliations to reproduce the following graph.

- Plot uses "#FF5733" as color with an alpha (transparency) of 0.55.