ξ = 29 students in a class

C = students who own a cat

D = students who own a dog

A student is chosen at random.

Choose the probability that the student owns a cat or a dog but not both.

One of the numbers is chosen at random.
Write down $P(S\capE)$.

There are 50 employees in a company.

Each employee either works in the Sales, Marketing or IT department.

Each employee either works remotely or on-site.

There are 20 employees in the IT department.

12 of the Marketing employees work remotely.

10 of the Sales employees work on-site.

18 employees in total work remotely.

6 of the IT employees work remotely.

How many more employees work in Marketing than in Sales?

This question has 2 part(s).