Question

In a recent survey of 400 students in a college, were listed as studying Typing (T) were registered for both courses and were listed as studying accountancy (T).

Answer 1

The intersect of typing and accounting ( T ∩ A ).

Explanation:

if 200 student study typing;

200 study accounting;

the set rule pictures this as;

typing( T ) = { 200 typing student }

accounting ( A )= { 200 accounting student }

To get the number of students enrolled for both courses;

We intersect the typing and accounting sets values.

that is;

students enrolled for both courses = T ∩ A